21118196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25261}}^1$

素因数の和:25295

約数の個数: 24

約数和(自身を含む): 42440160

約数和(自身を除く): 21321964

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 25261, 50522, 101044, 277871, 479959, 555742, 959918, 1111484, 1919836, 5279549, 10559098, 21118196]

約数ペア:

[(1, 21118196), (2, 10559098), (4, 5279549), (11, 1919836), (19, 1111484), (22, 959918), (38, 555742), (44, 479959), (76, 277871), (209, 101044), (418, 50522), (836, 25261)]