21528501

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{1621}}^1$

素因数の和:1876

約数の個数: 16

約数和(自身を含む): 30363840

約数和(自身を除く): 8835339

約数列:

[1, 3, 19, 57, 233, 699, 1621, 4427, 4863, 13281, 30799, 92397, 377693, 1133079, 7176167, 21528501]

約数ペア:

[(1, 21528501), (3, 7176167), (19, 1133079), (57, 377693), (233, 92397), (699, 30799), (1621, 13281), (4427, 4863)]