20827305

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20123}}^1$

素因数の和:20157

約数の個数: 24

約数和(自身を含む): 37672128

約数和(自身を除く): 16844823

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20123, 60369, 100615, 181107, 301845, 462829, 905535, 1388487, 2314145, 4165461, 6942435, 20827305]

約数ペア:

[(1, 20827305), (3, 6942435), (5, 4165461), (9, 2314145), (15, 1388487), (23, 905535), (45, 462829), (69, 301845), (115, 181107), (207, 100615), (345, 60369), (1035, 20123)]