31640791

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 41827968

約数和(自身を除く): 10187177

約数列:

[1, 7, 13, 17, 91, 113, 119, 181, 221, 791, 1267, 1469, 1547, 1921, 2353, 3077, 10283, 13447, 16471, 20453, 21539, 24973, 40001, 143171, 174811, 265889, 280007, 347701, 1861223, 2433907, 4520113, 31640791]

約数ペア:

[(1, 31640791), (7, 4520113), (13, 2433907), (17, 1861223), (91, 347701), (113, 280007), (119, 265889), (181, 174811), (221, 143171), (791, 40001), (1267, 24973), (1469, 21539), (1547, 20453), (1921, 16471), (2353, 13447), (3077, 10283)]