21907564

素因数分解:

$2^2\times 7^1\times {\mathrm{821}}^1\times {\mathrm{953}}^1$

素因数の和:1785

約数の個数: 24

約数和(自身を含む): 43914528

約数和(自身を除く): 22006964

約数列:

[1, 2, 4, 7, 14, 28, 821, 953, 1642, 1906, 3284, 3812, 5747, 6671, 11494, 13342, 22988, 26684, 782413, 1564826, 3129652, 5476891, 10953782, 21907564]

約数ペア:

[(1, 21907564), (2, 10953782), (4, 5476891), (7, 3129652), (14, 1564826), (28, 782413), (821, 26684), (953, 22988), (1642, 13342), (1906, 11494), (3284, 6671), (3812, 5747)]