21957999

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61507}}^1$

素因数の和:61534

約数の個数: 16

約数和(自身を含む): 35428608

約数和(自身を除く): 13470609

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 61507, 184521, 430549, 1045619, 1291647, 3136857, 7319333, 21957999]

約数ペア:

[(1, 21957999), (3, 7319333), (7, 3136857), (17, 1291647), (21, 1045619), (51, 430549), (119, 184521), (357, 61507)]