21222620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{55849}}^1$

素因数の和:55877

約数の個数: 24

約数和(自身を含む): 46914000

約数和(自身を除く): 25691380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55849, 111698, 223396, 279245, 558490, 1061131, 1116980, 2122262, 4244524, 5305655, 10611310, 21222620]

約数ペア:

[(1, 21222620), (2, 10611310), (4, 5305655), (5, 4244524), (10, 2122262), (19, 1116980), (20, 1061131), (38, 558490), (76, 279245), (95, 223396), (190, 111698), (380, 55849)]