21898921456

素因数分解:

$2^4\times {\mathrm{8689}}^1\times {\mathrm{157519}}^1$

素因数の和:166216

約数の個数: 20

約数和(自身を含む): 42434312800

約数和(自身を除く): 20535391344

約数列:

[1, 2, 4, 8, 16, 8689, 17378, 34756, 69512, 139024, 157519, 315038, 630076, 1260152, 2520304, 1368682591, 2737365182, 5474730364, 10949460728, 21898921456]

約数ペア:

[(1, 21898921456), (2, 10949460728), (4, 5474730364), (8, 2737365182), (16, 1368682591), (8689, 2520304), (17378, 1260152), (34756, 630076), (69512, 315038), (139024, 157519)]