21224751

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{1019}}^1$

素因数の和:1206

約数の個数: 16

約数和(自身を含む): 29082240

約数和(自身を除く): 7857489

約数列:

[1, 3, 53, 131, 159, 393, 1019, 3057, 6943, 20829, 54007, 133489, 162021, 400467, 7074917, 21224751]

約数ペア:

[(1, 21224751), (3, 7074917), (53, 400467), (131, 162021), (159, 133489), (393, 54007), (1019, 20829), (3057, 6943)]