21790124

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2339}}^1$

素因数の和:2497

約数の個数: 24

約数和(自身を含む): 40687920

約数和(自身を除く): 18897796

約数列:

[1, 2, 4, 17, 34, 68, 137, 274, 548, 2329, 2339, 4658, 4678, 9316, 9356, 39763, 79526, 159052, 320443, 640886, 1281772, 5447531, 10895062, 21790124]

約数ペア:

[(1, 21790124), (2, 10895062), (4, 5447531), (17, 1281772), (34, 640886), (68, 320443), (137, 159052), (274, 79526), (548, 39763), (2329, 9356), (2339, 9316), (4658, 4678)]