21768531

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{4721}}^1$

素因数の和:4806

約数の個数: 16

約数和(自身を含む): 30598560

約数和(自身を除く): 8830029

約数列:

[1, 3, 29, 53, 87, 159, 1537, 4611, 4721, 14163, 136909, 250213, 410727, 750639, 7256177, 21768531]

約数ペア:

[(1, 21768531), (3, 7256177), (29, 750639), (53, 410727), (87, 250213), (159, 136909), (1537, 14163), (4611, 4721)]