20959905

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22907}}^1$

素因数の和:22976

約数の個数: 16

約数和(自身を含む): 34087104

約数和(自身を除く): 13127199

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 22907, 68721, 114535, 343605, 1397327, 4191981, 6986635, 20959905]

約数ペア:

[(1, 20959905), (3, 6986635), (5, 4191981), (15, 1397327), (61, 343605), (183, 114535), (305, 68721), (915, 22907)]