20507913

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{373}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 30630600

約数和(自身を除く): 10122687

約数列:

[1, 3, 9, 41, 123, 149, 369, 373, 447, 1119, 1341, 3357, 6109, 15293, 18327, 45879, 54981, 55577, 137637, 166731, 500193, 2278657, 6835971, 20507913]

約数ペア:

[(1, 20507913), (3, 6835971), (9, 2278657), (41, 500193), (123, 166731), (149, 137637), (369, 55577), (373, 54981), (447, 45879), (1119, 18327), (1341, 15293), (3357, 6109)]