21719416

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{44507}}^1$

素因数の和:44574

約数の個数: 16

約数和(自身を含む): 41392440

約数和(自身を除く): 19673024

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 44507, 89014, 178028, 356056, 2714927, 5429854, 10859708, 21719416]

約数ペア:

[(1, 21719416), (2, 10859708), (4, 5429854), (8, 2714927), (61, 356056), (122, 178028), (244, 89014), (488, 44507)]