21625828

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{16433}}^1$

素因数の和:16491

約数の個数: 24

約数和(自身を含む): 44174592

約数和(自身を除く): 22548764

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 16433, 32866, 65732, 115031, 230062, 460124, 772351, 1544702, 3089404, 5406457, 10812914, 21625828]

約数ペア:

[(1, 21625828), (2, 10812914), (4, 5406457), (7, 3089404), (14, 1544702), (28, 772351), (47, 460124), (94, 230062), (188, 115031), (329, 65732), (658, 32866), (1316, 16433)]