21087720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3083}}^1$

素因数の和:3119

約数の個数: 96

約数和(自身を含む): 72165600

約数和(自身を除く): 51077880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 3083, 3420, 6166, 6840, 9249, 12332, 15415, 18498, 24664, 27747, 30830, 36996, 46245, 55494, 58577, 61660, 73992, 92490, 110988, 117154, 123320, 138735, 175731, 184980, 221976, 234308, 277470, 292885, 351462, 369960, 468616, 527193, 554940, 585770, 702924, 878655, 1054386, 1109880, 1171540, 1405848, 1757310, 2108772, 2343080, 2635965, 3514620, 4217544, 5271930, 7029240, 10543860, 21087720]

約数ペア:

[(1, 21087720), (2, 10543860), (3, 7029240), (4, 5271930), (5, 4217544), (6, 3514620), (8, 2635965), (9, 2343080), (10, 2108772), (12, 1757310), (15, 1405848), (18, 1171540), (19, 1109880), (20, 1054386), (24, 878655), (30, 702924), (36, 585770), (38, 554940), (40, 527193), (45, 468616), (57, 369960), (60, 351462), (72, 292885), (76, 277470), (90, 234308), (95, 221976), (114, 184980), (120, 175731), (152, 138735), (171, 123320), (180, 117154), (190, 110988), (228, 92490), (285, 73992), (342, 61660), (360, 58577), (380, 55494), (456, 46245), (570, 36996), (684, 30830), (760, 27747), (855, 24664), (1140, 18498), (1368, 15415), (1710, 12332), (2280, 9249), (3083, 6840), (3420, 6166)]