20523981

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{17497}}^1$

素因数の和:17540

約数の個数: 16

約数和(自身を含む): 30236544

約数和(自身を除く): 9712563

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 17497, 52491, 297449, 402431, 892347, 1207293, 6841327, 20523981]

約数ペア:

[(1, 20523981), (3, 6841327), (17, 1207293), (23, 892347), (51, 402431), (69, 297449), (391, 52491), (1173, 17497)]