890997023

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{719}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 1094860800

約数和(自身を除く): 203863777

約数列:

[1, 7, 23, 43, 161, 179, 301, 719, 989, 1253, 4117, 5033, 6923, 7697, 16537, 28819, 30917, 53879, 115759, 128701, 177031, 216419, 711091, 900907, 1239217, 2960123, 4977637, 5534143, 20720861, 38739001, 127285289, 890997023]

約数ペア:

[(1, 890997023), (7, 127285289), (23, 38739001), (43, 20720861), (161, 5534143), (179, 4977637), (301, 2960123), (719, 1239217), (989, 900907), (1253, 711091), (4117, 216419), (5033, 177031), (6923, 128701), (7697, 115759), (16537, 53879), (28819, 30917)]