20589217

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 25344000

約数和(自身を除く): 4754783

約数列:

[1, 11, 19, 29, 43, 79, 209, 319, 473, 551, 817, 869, 1247, 1501, 2291, 3397, 6061, 8987, 13717, 16511, 23693, 25201, 37367, 43529, 64543, 98513, 260623, 478819, 709973, 1083643, 1871747, 20589217]

約数ペア:

[(1, 20589217), (11, 1871747), (19, 1083643), (29, 709973), (43, 478819), (79, 260623), (209, 98513), (319, 64543), (473, 43529), (551, 37367), (817, 25201), (869, 23693), (1247, 16511), (1501, 13717), (2291, 8987), (3397, 6061)]