20012646405

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1\times {\mathrm{19973}}^1$

素因数の和:21045

約数の個数: 32

約数和(自身を含む): 32532372864

約数和(自身を除く): 12519726459

約数列:

[1, 3, 5, 15, 67, 201, 335, 997, 1005, 2991, 4985, 14955, 19973, 59919, 66799, 99865, 200397, 299595, 333995, 1001985, 1338191, 4014573, 6690955, 19913081, 20072865, 59739243, 99565405, 298696215, 1334176427, 4002529281, 6670882135, 20012646405]

約数ペア:

[(1, 20012646405), (3, 6670882135), (5, 4002529281), (15, 1334176427), (67, 298696215), (201, 99565405), (335, 59739243), (997, 20072865), (1005, 19913081), (2991, 6690955), (4985, 4014573), (14955, 1338191), (19973, 1001985), (59919, 333995), (66799, 299595), (99865, 200397)]