20854587

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{3847}}^1$

素因数の和:4002

約数の個数: 16

約数和(自身を含む): 30168320

約数和(自身を除く): 9313733

約数列:

[1, 3, 13, 39, 139, 417, 1807, 3847, 5421, 11541, 50011, 150033, 534733, 1604199, 6951529, 20854587]

約数ペア:

[(1, 20854587), (3, 6951529), (13, 1604199), (39, 534733), (139, 150033), (417, 50011), (1807, 11541), (3847, 5421)]