28409715

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{27449}}^1$

素因数の和:27483

約数の個数: 24

約数和(自身を含む): 51386400

約数和(自身を除く): 22976685

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 27449, 82347, 137245, 247041, 411735, 631327, 1235205, 1893981, 3156635, 5681943, 9469905, 28409715]

約数ペア:

[(1, 28409715), (3, 9469905), (5, 5681943), (9, 3156635), (15, 1893981), (23, 1235205), (45, 631327), (69, 411735), (115, 247041), (207, 137245), (345, 82347), (1035, 27449)]