21781398

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{77239}}^1$

素因数の和:77291

約数の個数: 16

約数和(自身を含む): 44490240

約数和(自身を除く): 22708842

約数列:

[1, 2, 3, 6, 47, 94, 141, 282, 77239, 154478, 231717, 463434, 3630233, 7260466, 10890699, 21781398]

約数ペア:

[(1, 21781398), (2, 10890699), (3, 7260466), (6, 3630233), (47, 463434), (94, 231717), (141, 154478), (282, 77239)]