18789518

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{569}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 14042482

約数列:

[1, 2, 11, 19, 22, 38, 79, 158, 209, 418, 569, 869, 1138, 1501, 1738, 3002, 6259, 10811, 12518, 16511, 21622, 33022, 44951, 89902, 118921, 237842, 494461, 854069, 988922, 1708138, 9394759, 18789518]

約数ペア:

[(1, 18789518), (2, 9394759), (11, 1708138), (19, 988922), (22, 854069), (38, 494461), (79, 237842), (158, 118921), (209, 89902), (418, 44951), (569, 33022), (869, 21622), (1138, 16511), (1501, 12518), (1738, 10811), (3002, 6259)]