19886108

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:434

約数の個数: 36

約数和(自身を含む): 38632776

約数和(自身を除く): 18746668

約数列:

[1, 2, 4, 11, 22, 44, 121, 181, 227, 242, 362, 454, 484, 724, 908, 1991, 2497, 3982, 4994, 7964, 9988, 21901, 27467, 41087, 43802, 54934, 82174, 87604, 109868, 164348, 451957, 903914, 1807828, 4971527, 9943054, 19886108]

約数ペア:

[(1, 19886108), (2, 9943054), (4, 4971527), (11, 1807828), (22, 903914), (44, 451957), (121, 164348), (181, 109868), (227, 87604), (242, 82174), (362, 54934), (454, 43802), (484, 41087), (724, 27467), (908, 21901), (1991, 9988), (2497, 7964), (3982, 4994)]