20219139

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10853}}^1$

素因数の和:10888

約数の個数: 20

約数和(自身を含む): 31520016

約数和(自身を除く): 11300877

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10853, 32559, 97677, 249619, 293031, 748857, 879093, 2246571, 6739713, 20219139]

約数ペア:

[(1, 20219139), (3, 6739713), (9, 2246571), (23, 879093), (27, 748857), (69, 293031), (81, 249619), (207, 97677), (621, 32559), (1863, 10853)]