21417832

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{43889}}^1$

素因数の和:43956

約数の個数: 16

約数和(自身を含む): 40817700

約数和(自身を除く): 19399868

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 43889, 87778, 175556, 351112, 2677229, 5354458, 10708916, 21417832]

約数ペア:

[(1, 21417832), (2, 10708916), (4, 5354458), (8, 2677229), (61, 351112), (122, 175556), (244, 87778), (488, 43889)]