20210141943

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{180701}}^1$

素因数の和:180784

約数の個数: 36

約数和(自身を含む): 31731994008

約数和(自身を除く): 11521852065

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 289, 387, 731, 867, 2193, 2601, 6579, 12427, 37281, 111843, 180701, 542103, 1626309, 3071917, 7770143, 9215751, 23310429, 27647253, 52222589, 69931287, 132092431, 156667767, 396277293, 470003301, 1188831879, 2245571327, 6736713981, 20210141943]

約数ペア:

[(1, 20210141943), (3, 6736713981), (9, 2245571327), (17, 1188831879), (43, 470003301), (51, 396277293), (129, 156667767), (153, 132092431), (289, 69931287), (387, 52222589), (731, 27647253), (867, 23310429), (2193, 9215751), (2601, 7770143), (6579, 3071917), (12427, 1626309), (37281, 542103), (111843, 180701)]