20121159

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{331}}^1\times {\mathrm{881}}^1$

素因数の和:1238

約数の個数: 16

約数和(自身を含む): 28111104

約数和(自身を除く): 7989945

約数列:

[1, 3, 23, 69, 331, 881, 993, 2643, 7613, 20263, 22839, 60789, 291611, 874833, 6707053, 20121159]

約数ペア:

[(1, 20121159), (3, 6707053), (23, 874833), (69, 291611), (331, 60789), (881, 22839), (993, 20263), (2643, 7613)]