21398024

素因数分解:

$2^3\times {\mathrm{173}}^1\times {\mathrm{15461}}^1$

素因数の和:15640

約数の個数: 16

約数和(自身を含む): 40355820

約数和(自身を除く): 18957796

約数列:

[1, 2, 4, 8, 173, 346, 692, 1384, 15461, 30922, 61844, 123688, 2674753, 5349506, 10699012, 21398024]

約数ペア:

[(1, 21398024), (2, 10699012), (4, 5349506), (8, 2674753), (173, 123688), (346, 61844), (692, 30922), (1384, 15461)]