21356450

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{4229}}^1$

素因数の和:4342

約数の個数: 24

約数和(自身を含む): 40125780

約数和(自身を除く): 18769330

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 4229, 5050, 8458, 21145, 42290, 105725, 211450, 427129, 854258, 2135645, 4271290, 10678225, 21356450]

約数ペア:

[(1, 21356450), (2, 10678225), (5, 4271290), (10, 2135645), (25, 854258), (50, 427129), (101, 211450), (202, 105725), (505, 42290), (1010, 21145), (2525, 8458), (4229, 5050)]