20632815

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{3853}}^1$

素因数の和:3888

約数の個数: 48

約数和(自身を含む): 43288128

約数和(自身を除く): 22655313

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 3853, 5355, 11559, 19265, 26971, 34677, 57795, 65501, 80913, 134855, 173385, 196503, 242739, 327505, 404565, 458507, 589509, 982515, 1213695, 1375521, 2292535, 2947545, 4126563, 6877605, 20632815]

約数ペア:

[(1, 20632815), (3, 6877605), (5, 4126563), (7, 2947545), (9, 2292535), (15, 1375521), (17, 1213695), (21, 982515), (35, 589509), (45, 458507), (51, 404565), (63, 327505), (85, 242739), (105, 196503), (119, 173385), (153, 134855), (255, 80913), (315, 65501), (357, 57795), (595, 34677), (765, 26971), (1071, 19265), (1785, 11559), (3853, 5355)]