31183971

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1109}}^1$

素因数の和:1235

約数の個数: 32

約数和(自身を含む): 51717120

約数和(自身を除く): 20533149

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 309, 721, 1109, 1339, 2163, 3327, 4017, 7763, 9373, 14417, 23289, 28119, 43251, 100919, 114227, 302757, 342681, 799589, 1484951, 2398767, 4454853, 10394657, 31183971]

約数ペア:

[(1, 31183971), (3, 10394657), (7, 4454853), (13, 2398767), (21, 1484951), (39, 799589), (91, 342681), (103, 302757), (273, 114227), (309, 100919), (721, 43251), (1109, 28119), (1339, 23289), (2163, 14417), (3327, 9373), (4017, 7763)]