21997724

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25343}}^1$

素因数の和:25385

約数の個数: 24

約数和(自身を含む): 45416448

約数和(自身を除く): 23418724

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 25343, 50686, 101372, 177401, 354802, 709604, 785633, 1571266, 3142532, 5499431, 10998862, 21997724]

約数ペア:

[(1, 21997724), (2, 10998862), (4, 5499431), (7, 3142532), (14, 1571266), (28, 785633), (31, 709604), (62, 354802), (124, 177401), (217, 101372), (434, 50686), (868, 25343)]