19845021

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{227}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 31868928

約数和(自身を除く): 12023907

約数列:

[1, 3, 7, 21, 23, 69, 161, 181, 227, 483, 543, 681, 1267, 1589, 3801, 4163, 4767, 5221, 12489, 15663, 29141, 36547, 41087, 87423, 109641, 123261, 287609, 862827, 945001, 2835003, 6615007, 19845021]

約数ペア:

[(1, 19845021), (3, 6615007), (7, 2835003), (21, 945001), (23, 862827), (69, 287609), (161, 123261), (181, 109641), (227, 87423), (483, 41087), (543, 36547), (681, 29141), (1267, 15663), (1589, 12489), (3801, 5221), (4163, 4767)]