21890698

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{13397}}^1$

素因数の和:13461

約数の個数: 16

約数和(自身を含む): 35370720

約数和(自身を除く): 13480022

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 13397, 26794, 254543, 509086, 576071, 1152142, 10945349, 21890698]

約数ペア:

[(1, 21890698), (2, 10945349), (19, 1152142), (38, 576071), (43, 509086), (86, 254543), (817, 26794), (1634, 13397)]