20979504

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1601}}^1$

素因数の和:1635

約数の個数: 120

約数和(自身を含む): 72307872

約数和(自身を除く): 51328368

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 36, 39, 42, 48, 52, 56, 63, 72, 78, 84, 91, 104, 112, 117, 126, 144, 156, 168, 182, 208, 234, 252, 273, 312, 336, 364, 468, 504, 546, 624, 728, 819, 936, 1008, 1092, 1456, 1601, 1638, 1872, 2184, 3202, 3276, 4368, 4803, 6404, 6552, 9606, 11207, 12808, 13104, 14409, 19212, 20813, 22414, 25616, 28818, 33621, 38424, 41626, 44828, 57636, 62439, 67242, 76848, 83252, 89656, 100863, 115272, 124878, 134484, 145691, 166504, 179312, 187317, 201726, 230544, 249756, 268968, 291382, 333008, 374634, 403452, 437073, 499512, 537936, 582764, 749268, 806904, 874146, 999024, 1165528, 1311219, 1498536, 1613808, 1748292, 2331056, 2622438, 2997072, 3496584, 5244876, 6993168, 10489752, 20979504]

約数ペア:

[(1, 20979504), (2, 10489752), (3, 6993168), (4, 5244876), (6, 3496584), (7, 2997072), (8, 2622438), (9, 2331056), (12, 1748292), (13, 1613808), (14, 1498536), (16, 1311219), (18, 1165528), (21, 999024), (24, 874146), (26, 806904), (28, 749268), (36, 582764), (39, 537936), (42, 499512), (48, 437073), (52, 403452), (56, 374634), (63, 333008), (72, 291382), (78, 268968), (84, 249756), (91, 230544), (104, 201726), (112, 187317), (117, 179312), (126, 166504), (144, 145691), (156, 134484), (168, 124878), (182, 115272), (208, 100863), (234, 89656), (252, 83252), (273, 76848), (312, 67242), (336, 62439), (364, 57636), (468, 44828), (504, 41626), (546, 38424), (624, 33621), (728, 28818), (819, 25616), (936, 22414), (1008, 20813), (1092, 19212), (1456, 14409), (1601, 13104), (1638, 12808), (1872, 11207), (2184, 9606), (3202, 6552), (3276, 6404), (4368, 4803)]