20190951

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:114

約数の個数: 80

約数和(自身を含む): 36799488

約数和(自身を除く): 16608537

約数列:

[1, 3, 9, 11, 17, 27, 31, 33, 43, 51, 81, 93, 99, 129, 153, 187, 279, 297, 341, 387, 459, 473, 527, 561, 731, 837, 891, 1023, 1161, 1333, 1377, 1419, 1581, 1683, 2193, 2511, 3069, 3483, 3999, 4257, 4743, 5049, 5797, 6579, 8041, 9207, 11997, 12771, 14229, 14663, 15147, 17391, 19737, 22661, 24123, 27621, 35991, 38313, 42687, 43989, 52173, 59211, 67983, 72369, 107973, 131967, 156519, 203949, 217107, 249271, 395901, 469557, 611847, 651321, 747813, 1187703, 1835541, 2243439, 6730317, 20190951]

約数ペア:

[(1, 20190951), (3, 6730317), (9, 2243439), (11, 1835541), (17, 1187703), (27, 747813), (31, 651321), (33, 611847), (43, 469557), (51, 395901), (81, 249271), (93, 217107), (99, 203949), (129, 156519), (153, 131967), (187, 107973), (279, 72369), (297, 67983), (341, 59211), (387, 52173), (459, 43989), (473, 42687), (527, 38313), (561, 35991), (731, 27621), (837, 24123), (891, 22661), (1023, 19737), (1161, 17391), (1333, 15147), (1377, 14663), (1419, 14229), (1581, 12771), (1683, 11997), (2193, 9207), (2511, 8041), (3069, 6579), (3483, 5797), (3999, 5049), (4257, 4743)]