20694544

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2689}}^1$

素因数の和:2747

約数の個数: 40

約数和(自身を含む): 44363480

約数和(自身を除く): 23668936

約数列:

[1, 2, 4, 8, 13, 16, 26, 37, 52, 74, 104, 148, 208, 296, 481, 592, 962, 1924, 2689, 3848, 5378, 7696, 10756, 21512, 34957, 43024, 69914, 99493, 139828, 198986, 279656, 397972, 559312, 795944, 1293409, 1591888, 2586818, 5173636, 10347272, 20694544]

約数ペア:

[(1, 20694544), (2, 10347272), (4, 5173636), (8, 2586818), (13, 1591888), (16, 1293409), (26, 795944), (37, 559312), (52, 397972), (74, 279656), (104, 198986), (148, 139828), (208, 99493), (296, 69914), (481, 43024), (592, 34957), (962, 21512), (1924, 10756), (2689, 7696), (3848, 5378)]