20177491047

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{17863}}^1$

素因数の和:18060

約数の個数: 48

約数和(自身を含む): 32669683200

約数和(自身を除く): 12492192153

約数列:

[1, 3, 7, 19, 21, 57, 133, 149, 361, 399, 447, 1043, 1083, 2527, 2831, 3129, 7581, 8493, 17863, 19817, 53589, 53789, 59451, 125041, 161367, 339397, 375123, 376523, 1018191, 1129569, 2375779, 2661587, 6448543, 7127337, 7984761, 18631109, 19345629, 45139801, 50570153, 55893327, 135419403, 151710459, 353991071, 960832907, 1061973213, 2882498721, 6725830349, 20177491047]

約数ペア:

[(1, 20177491047), (3, 6725830349), (7, 2882498721), (19, 1061973213), (21, 960832907), (57, 353991071), (133, 151710459), (149, 135419403), (361, 55893327), (399, 50570153), (447, 45139801), (1043, 19345629), (1083, 18631109), (2527, 7984761), (2831, 7127337), (3129, 6448543), (7581, 2661587), (8493, 2375779), (17863, 1129569), (19817, 1018191), (53589, 376523), (53789, 375123), (59451, 339397), (125041, 161367)]