21899084

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{1993}}^1$

素因数の和:2105

約数の個数: 24

約数和(自身を含む): 39864048

約数和(自身を除く): 17964964

約数列:

[1, 2, 4, 41, 67, 82, 134, 164, 268, 1993, 2747, 3986, 5494, 7972, 10988, 81713, 133531, 163426, 267062, 326852, 534124, 5474771, 10949542, 21899084]

約数ペア:

[(1, 21899084), (2, 10949542), (4, 5474771), (41, 534124), (67, 326852), (82, 267062), (134, 163426), (164, 133531), (268, 81713), (1993, 10988), (2747, 7972), (3986, 5494)]