12887973

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1303}}^1$

素因数の和:1473

約数の個数: 24

約数和(自身を含む): 21427328

約数和(自身を除く): 8539355

約数列:

[1, 3, 7, 9, 21, 63, 157, 471, 1099, 1303, 1413, 3297, 3909, 9121, 9891, 11727, 27363, 82089, 204571, 613713, 1431997, 1841139, 4295991, 12887973]

約数ペア:

[(1, 12887973), (3, 4295991), (7, 1841139), (9, 1431997), (21, 613713), (63, 204571), (157, 82089), (471, 27363), (1099, 11727), (1303, 9891), (1413, 9121), (3297, 3909)]