19853420

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4373}}^1$

素因数の和:4609

約数の個数: 24

約数和(自身を含む): 41885424

約数和(自身を除く): 22032004

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4373, 4540, 8746, 17492, 21865, 43730, 87460, 992671, 1985342, 3970684, 4963355, 9926710, 19853420]

約数ペア:

[(1, 19853420), (2, 9926710), (4, 4963355), (5, 3970684), (10, 1985342), (20, 992671), (227, 87460), (454, 43730), (908, 21865), (1135, 17492), (2270, 8746), (4373, 4540)]