21625930

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{5393}}^1$

素因数の和:5801

約数の個数: 16

約数和(自身を含む): 39030984

約数和(自身を除く): 17405054

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 5393, 10786, 26965, 53930, 2162593, 4325186, 10812965, 21625930]

約数ペア:

[(1, 21625930), (2, 10812965), (5, 4325186), (10, 2162593), (401, 53930), (802, 26965), (2005, 10786), (4010, 5393)]