205138311

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1\times {\mathrm{1871}}^1$

素因数の和:2131

約数の個数: 32

約数和(自身を含む): 327794688

約数和(自身を除く): 122656377

約数列:

[1, 3, 7, 21, 23, 69, 161, 227, 483, 681, 1589, 1871, 4767, 5221, 5613, 13097, 15663, 36547, 39291, 43033, 109641, 129099, 301231, 424717, 903693, 1274151, 2973019, 8919057, 9768491, 29305473, 68379437, 205138311]

約数ペア:

[(1, 205138311), (3, 68379437), (7, 29305473), (21, 9768491), (23, 8919057), (69, 2973019), (161, 1274151), (227, 903693), (483, 424717), (681, 301231), (1589, 129099), (1871, 109641), (4767, 43033), (5221, 39291), (5613, 36547), (13097, 15663)]