21014073

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{4253}}^1$

素因数の和:4326

約数の個数: 20

約数和(自身を含む): 31913508

約数和(自身を除く): 10899435

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4253, 4941, 12759, 38277, 114831, 259433, 344493, 778299, 2334897, 7004691, 21014073]

約数ペア:

[(1, 21014073), (3, 7004691), (9, 2334897), (27, 778299), (61, 344493), (81, 259433), (183, 114831), (549, 38277), (1647, 12759), (4253, 4941)]