20210465

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{877}}^1$

素因数の和:1312

約数の個数: 16

約数和(自身を含む): 26550720

約数和(自身を除く): 6340255

約数列:

[1, 5, 11, 55, 419, 877, 2095, 4385, 4609, 9647, 23045, 48235, 367463, 1837315, 4042093, 20210465]

約数ペア:

[(1, 20210465), (5, 4042093), (11, 1837315), (55, 367463), (419, 48235), (877, 23045), (2095, 9647), (4385, 4609)]