21285465

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:733

約数の個数: 32

約数和(自身を含む): 35942400

約数和(自身を除く): 14656935

約数列:

[1, 3, 5, 15, 23, 69, 103, 115, 309, 345, 515, 599, 1545, 1797, 2369, 2995, 7107, 8985, 11845, 13777, 35535, 41331, 61697, 68885, 185091, 206655, 308485, 925455, 1419031, 4257093, 7095155, 21285465]

約数ペア:

[(1, 21285465), (3, 7095155), (5, 4257093), (15, 1419031), (23, 925455), (69, 308485), (103, 206655), (115, 185091), (309, 68885), (345, 61697), (515, 41331), (599, 35535), (1545, 13777), (1797, 11845), (2369, 8985), (2995, 7107)]