21742059

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{569}}^1$

素因数の和:890

約数の個数: 16

約数和(自身を含む): 29767680

約数和(自身を除く): 8025621

約数列:

[1, 3, 47, 141, 271, 569, 813, 1707, 12737, 26743, 38211, 80229, 154199, 462597, 7247353, 21742059]

約数ペア:

[(1, 21742059), (3, 7247353), (47, 462597), (141, 154199), (271, 80229), (569, 38211), (813, 26743), (1707, 12737)]