21691112

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{44449}}^1$

素因数の和:44516

約数の個数: 16

約数和(自身を含む): 41338500

約数和(自身を除く): 19647388

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 44449, 88898, 177796, 355592, 2711389, 5422778, 10845556, 21691112]

約数ペア:

[(1, 21691112), (2, 10845556), (4, 5422778), (8, 2711389), (61, 355592), (122, 177796), (244, 88898), (488, 44449)]