21284257156

素因数分解:

$2^2\times {\mathrm{12713}}^1\times {\mathrm{418553}}^1$

素因数の和:431270

約数の個数: 12

約数和(自身を含む): 37250468892

約数和(自身を除く): 15966211736

約数列:

[1, 2, 4, 12713, 25426, 50852, 418553, 837106, 1674212, 5321064289, 10642128578, 21284257156]

約数ペア:

[(1, 21284257156), (2, 10642128578), (4, 5321064289), (12713, 1674212), (25426, 837106), (50852, 418553)]