20917566

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{15919}}^1$

素因数の和:16000

約数の個数: 24

約数和(自身を含む): 45945120

約数和(自身を除く): 25027554

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 15919, 31838, 47757, 95514, 143271, 286542, 1162087, 2324174, 3486261, 6972522, 10458783, 20917566]

約数ペア:

[(1, 20917566), (2, 10458783), (3, 6972522), (6, 3486261), (9, 2324174), (18, 1162087), (73, 286542), (146, 143271), (219, 95514), (438, 47757), (657, 31838), (1314, 15919)]