221444671

素因数分解:

$7^2\times {\mathrm{151}}^1\times {\mathrm{173}}^2$

素因数の和:511

約数の個数: 18

約数和(自身を含む): 260812392

約数和(自身を除く): 39367721

約数列:

[1, 7, 49, 151, 173, 1057, 1211, 7399, 8477, 26123, 29929, 182861, 209503, 1280027, 1466521, 4519279, 31634953, 221444671]

約数ペア:

[(1, 221444671), (7, 31634953), (49, 4519279), (151, 1466521), (173, 1280027), (1057, 209503), (1211, 182861), (7399, 29929), (8477, 26123)]