421.0000000

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:462

約数の個数: 16

約数和(自身を含む): 8048160

約数和(自身を除く): 2188533

約数列:

[1, 3, 53, 137, 159, 269, 411, 807, 7261, 14257, 21783, 36853, 42771, 110559, 1953209, 5859627]

約数ペア:

[(1, 5859627), (3, 1953209), (53, 110559), (137, 42771), (159, 36853), (269, 21783), (411, 14257), (807, 7261)]