21319018

素因数分解:

$2^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{1031}}^1$

素因数の和:1258

約数の個数: 24

約数和(自身を含む): 37412064

約数和(自身を除く): 16093046

約数列:

[1, 2, 7, 14, 49, 98, 211, 422, 1031, 1477, 2062, 2954, 7217, 10339, 14434, 20678, 50519, 101038, 217541, 435082, 1522787, 3045574, 10659509, 21319018]

約数ペア:

[(1, 21319018), (2, 10659509), (7, 3045574), (14, 1522787), (49, 435082), (98, 217541), (211, 101038), (422, 50519), (1031, 20678), (1477, 14434), (2062, 10339), (2954, 7217)]