71991129

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 112379904

約数和(自身を除く): 40388775

約数列:

[1, 3, 7, 21, 83, 103, 249, 309, 401, 581, 721, 1203, 1743, 2163, 2807, 8421, 8549, 25647, 33283, 41303, 59843, 99849, 123909, 179529, 232981, 289121, 698943, 867363, 3428149, 10284447, 23997043, 71991129]

約数ペア:

[(1, 71991129), (3, 23997043), (7, 10284447), (21, 3428149), (83, 867363), (103, 698943), (249, 289121), (309, 232981), (401, 179529), (581, 123909), (721, 99849), (1203, 59843), (1743, 41303), (2163, 33283), (2807, 25647), (8421, 8549)]