21411988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{17903}}^1$

素因数の和:17943

約数の個数: 24

約数和(自身を含む): 42110208

約数和(自身を除く): 20698220

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 299, 598, 1196, 17903, 35806, 71612, 232739, 411769, 465478, 823538, 930956, 1647076, 5352997, 10705994, 21411988]

約数ペア:

[(1, 21411988), (2, 10705994), (4, 5352997), (13, 1647076), (23, 930956), (26, 823538), (46, 465478), (52, 411769), (92, 232739), (299, 71612), (598, 35806), (1196, 17903)]