20457666

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{15569}}^1$

素因数の和:15650

約数の個数: 24

約数和(自身を含む): 44935020

約数和(自身を除く): 24477354

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 15569, 31138, 46707, 93414, 140121, 280242, 1136537, 2273074, 3409611, 6819222, 10228833, 20457666]

約数ペア:

[(1, 20457666), (2, 10228833), (3, 6819222), (6, 3409611), (9, 2273074), (18, 1136537), (73, 280242), (146, 140121), (219, 93414), (438, 46707), (657, 31138), (1314, 15569)]