201531291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{439}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 295680000

約数和(自身を除く): 94148709

約数列:

[1, 3, 13, 39, 79, 149, 237, 439, 447, 1027, 1317, 1937, 3081, 5707, 5811, 11771, 17121, 34681, 35313, 65411, 104043, 153023, 196233, 450853, 459069, 850343, 1352559, 2551029, 5167469, 15502407, 67177097, 201531291]

約数ペア:

[(1, 201531291), (3, 67177097), (13, 15502407), (39, 5167469), (79, 2551029), (149, 1352559), (237, 850343), (439, 459069), (447, 450853), (1027, 196233), (1317, 153023), (1937, 104043), (3081, 65411), (5707, 35313), (5811, 34681), (11771, 17121)]