21000252720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{233}}^1\times {\mathrm{283}}^1\times {\mathrm{1327}}^1$

素因数の和:1859

約数の個数: 160

約数和(自身を含む): 65660654592

約数和(自身を除く): 44660401872

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 233, 240, 283, 466, 566, 699, 849, 932, 1132, 1165, 1327, 1398, 1415, 1698, 1864, 2264, 2330, 2654, 2796, 2830, 3396, 3495, 3728, 3981, 4245, 4528, 4660, 5308, 5592, 5660, 6635, 6792, 6990, 7962, 8490, 9320, 10616, 11184, 11320, 13270, 13584, 13980, 15924, 16980, 18640, 19905, 21232, 22640, 26540, 27960, 31848, 33960, 39810, 53080, 55920, 63696, 65939, 67920, 79620, 106160, 131878, 159240, 197817, 263756, 309191, 318480, 329695, 375541, 395634, 527512, 618382, 659390, 751082, 791268, 927573, 989085, 1055024, 1126623, 1236764, 1318780, 1502164, 1545955, 1582536, 1855146, 1877705, 1978170, 2253246, 2473528, 2637560, 3004328, 3091910, 3165072, 3710292, 3755410, 3956340, 4506492, 4637865, 4947056, 5275120, 5633115, 6008656, 6183820, 7420584, 7510820, 7912680, 9012984, 9275730, 11266230, 12367640, 14841168, 15021640, 15825360, 18025968, 18551460, 22532460, 24735280, 30043280, 37102920, 45064920, 74205840, 87501053, 90129840, 175002106, 262503159, 350004212, 437505265, 525006318, 700008424, 875010530, 1050012636, 1312515795, 1400016848, 1750021060, 2100025272, 2625031590, 3500042120, 4200050544, 5250063180, 7000084240, 10500126360, 21000252720]

約数ペア:

[(1, 21000252720), (2, 10500126360), (3, 7000084240), (4, 5250063180), (5, 4200050544), (6, 3500042120), (8, 2625031590), (10, 2100025272), (12, 1750021060), (15, 1400016848), (16, 1312515795), (20, 1050012636), (24, 875010530), (30, 700008424), (40, 525006318), (48, 437505265), (60, 350004212), (80, 262503159), (120, 175002106), (233, 90129840), (240, 87501053), (283, 74205840), (466, 45064920), (566, 37102920), (699, 30043280), (849, 24735280), (932, 22532460), (1132, 18551460), (1165, 18025968), (1327, 15825360), (1398, 15021640), (1415, 14841168), (1698, 12367640), (1864, 11266230), (2264, 9275730), (2330, 9012984), (2654, 7912680), (2796, 7510820), (2830, 7420584), (3396, 6183820), (3495, 6008656), (3728, 5633115), (3981, 5275120), (4245, 4947056), (4528, 4637865), (4660, 4506492), (5308, 3956340), (5592, 3755410), (5660, 3710292), (6635, 3165072), (6792, 3091910), (6990, 3004328), (7962, 2637560), (8490, 2473528), (9320, 2253246), (10616, 1978170), (11184, 1877705), (11320, 1855146), (13270, 1582536), (13584, 1545955), (13980, 1502164), (15924, 1318780), (16980, 1236764), (18640, 1126623), (19905, 1055024), (21232, 989085), (22640, 927573), (26540, 791268), (27960, 751082), (31848, 659390), (33960, 618382), (39810, 527512), (53080, 395634), (55920, 375541), (63696, 329695), (65939, 318480), (67920, 309191), (79620, 263756), (106160, 197817), (131878, 159240)]