81372369

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 120766464

約数和(自身を除く): 39394095

約数列:

[1, 3, 13, 39, 47, 103, 141, 309, 431, 611, 1293, 1339, 1833, 4017, 4841, 5603, 14523, 16809, 20257, 44393, 60771, 62933, 133179, 188799, 263341, 577109, 790023, 1731327, 2086471, 6259413, 27124123, 81372369]

約数ペア:

[(1, 81372369), (3, 27124123), (13, 6259413), (39, 2086471), (47, 1731327), (103, 790023), (141, 577109), (309, 263341), (431, 188799), (611, 133179), (1293, 62933), (1339, 60771), (1833, 44393), (4017, 20257), (4841, 16809), (5603, 14523)]