31015257

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1103}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 51437568

約数和(自身を除く): 20422311

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 309, 721, 1103, 1339, 2163, 3309, 4017, 7721, 9373, 14339, 23163, 28119, 43017, 100373, 113609, 301119, 340827, 795263, 1476917, 2385789, 4430751, 10338419, 31015257]

約数ペア:

[(1, 31015257), (3, 10338419), (7, 4430751), (13, 2385789), (21, 1476917), (39, 795263), (91, 340827), (103, 301119), (273, 113609), (309, 100373), (721, 43017), (1103, 28119), (1339, 23163), (2163, 14339), (3309, 9373), (4017, 7721)]