21353059

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{461}}^1\times {\mathrm{509}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 26389440

約数和(自身を除く): 5036381

約数列:

[1, 7, 13, 91, 461, 509, 3227, 3563, 5993, 6617, 41951, 46319, 234649, 1642543, 3050437, 21353059]

約数ペア:

[(1, 21353059), (7, 3050437), (13, 1642543), (91, 234649), (461, 46319), (509, 41951), (3227, 6617), (3563, 5993)]