20218649841

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{15107}}^1$

素因数の和:15204

約数の個数: 80

約数和(自身を含む): 34396927488

約数和(自身を除く): 14178277647

約数列:

[1, 3, 9, 13, 27, 31, 39, 41, 81, 93, 117, 123, 279, 351, 369, 403, 533, 837, 1053, 1107, 1209, 1271, 1599, 2511, 3321, 3627, 3813, 4797, 10881, 11439, 14391, 15107, 16523, 32643, 34317, 43173, 45321, 49569, 102951, 135963, 148707, 196391, 407889, 446121, 468317, 589173, 619387, 1223667, 1338363, 1404951, 1767519, 1858161, 4214853, 5302557, 5574483, 6088121, 8052031, 12644559, 15907671, 16723449, 18264363, 19200997, 24156093, 37933677, 50170347, 54793089, 57602991, 72468279, 164379267, 172808973, 217404837, 249612961, 493137801, 518426919, 652214511, 748838883, 1555280757, 2246516649, 6739549947, 20218649841]

約数ペア:

[(1, 20218649841), (3, 6739549947), (9, 2246516649), (13, 1555280757), (27, 748838883), (31, 652214511), (39, 518426919), (41, 493137801), (81, 249612961), (93, 217404837), (117, 172808973), (123, 164379267), (279, 72468279), (351, 57602991), (369, 54793089), (403, 50170347), (533, 37933677), (837, 24156093), (1053, 19200997), (1107, 18264363), (1209, 16723449), (1271, 15907671), (1599, 12644559), (2511, 8052031), (3321, 6088121), (3627, 5574483), (3813, 5302557), (4797, 4214853), (10881, 1858161), (11439, 1767519), (14391, 1404951), (15107, 1338363), (16523, 1223667), (32643, 619387), (34317, 589173), (43173, 468317), (45321, 446121), (49569, 407889), (102951, 196391), (135963, 148707)]