19785392

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1423}}^1$

素因数の和:1521

約数の個数: 40

約数和(自身を含む): 42378240

約数和(自身を除く): 22592848

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 79, 88, 158, 176, 316, 632, 869, 1264, 1423, 1738, 2846, 3476, 5692, 6952, 11384, 13904, 15653, 22768, 31306, 62612, 112417, 125224, 224834, 250448, 449668, 899336, 1236587, 1798672, 2473174, 4946348, 9892696, 19785392]

約数ペア:

[(1, 19785392), (2, 9892696), (4, 4946348), (8, 2473174), (11, 1798672), (16, 1236587), (22, 899336), (44, 449668), (79, 250448), (88, 224834), (158, 125224), (176, 112417), (316, 62612), (632, 31306), (869, 22768), (1264, 15653), (1423, 13904), (1738, 11384), (2846, 6952), (3476, 5692)]