209520501

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{53}}^2$

素因数の和:202

約数の個数: 36

約数和(自身を含む): 303981888

約数和(自身を除く): 94461387

約数列:

[1, 3, 23, 47, 53, 69, 141, 159, 529, 1081, 1219, 1587, 2491, 2809, 3243, 3657, 7473, 8427, 24863, 28037, 57293, 64607, 74589, 84111, 132023, 171879, 193821, 396069, 1317739, 1485961, 3036529, 3953217, 4457883, 9109587, 69840167, 209520501]

約数ペア:

[(1, 209520501), (3, 69840167), (23, 9109587), (47, 4457883), (53, 3953217), (69, 3036529), (141, 1485961), (159, 1317739), (529, 396069), (1081, 193821), (1219, 171879), (1587, 132023), (2491, 84111), (2809, 74589), (3243, 64607), (3657, 57293), (7473, 28037), (8427, 24863)]