21811045

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1\times {\mathrm{419}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 27216000

約数和(自身を除く): 5404955

約数列:

[1, 5, 29, 145, 359, 419, 1795, 2095, 10411, 12151, 52055, 60755, 150421, 752105, 4362209, 21811045]

約数ペア:

[(1, 21811045), (5, 4362209), (29, 752105), (145, 150421), (359, 60755), (419, 52055), (1795, 12151), (2095, 10411)]