21684866

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53411}}^1$

素因数の和:53449

約数の個数: 16

約数和(自身を含む): 38456640

約数和(自身を除く): 16771774

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 53411, 106822, 373877, 747754, 1548919, 3097838, 10842433, 21684866]

約数ペア:

[(1, 21684866), (2, 10842433), (7, 3097838), (14, 1548919), (29, 747754), (58, 373877), (203, 106822), (406, 53411)]