81278901

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 133628352

約数和(自身を除く): 52349451

約数列:

[1, 3, 9, 11, 33, 43, 61, 99, 129, 183, 313, 387, 473, 549, 671, 939, 1419, 2013, 2623, 2817, 3443, 4257, 6039, 7869, 10329, 13459, 19093, 23607, 28853, 30987, 40377, 57279, 86559, 121131, 148049, 171837, 210023, 259677, 444147, 630069, 820999, 1332441, 1890207, 2462997, 7388991, 9030989, 27092967, 81278901]

約数ペア:

[(1, 81278901), (3, 27092967), (9, 9030989), (11, 7388991), (33, 2462997), (43, 1890207), (61, 1332441), (99, 820999), (129, 630069), (183, 444147), (313, 259677), (387, 210023), (473, 171837), (549, 148049), (671, 121131), (939, 86559), (1419, 57279), (2013, 40377), (2623, 30987), (2817, 28853), (3443, 23607), (4257, 19093), (6039, 13459), (7869, 10329)]