18768915

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{383}}^1$

素因数の和:422

約数の個数: 60

約数和(自身を含む): 37078272

約数和(自身を除く): 18309357

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 121, 135, 165, 297, 363, 383, 405, 495, 605, 891, 1089, 1149, 1485, 1815, 1915, 3267, 3447, 4213, 4455, 5445, 5745, 9801, 10341, 12639, 16335, 17235, 21065, 31023, 37917, 46343, 49005, 51705, 63195, 113751, 139029, 155115, 189585, 231715, 341253, 417087, 568755, 695145, 1251261, 1706265, 2085435, 3753783, 6256305, 18768915]

約数ペア:

[(1, 18768915), (3, 6256305), (5, 3753783), (9, 2085435), (11, 1706265), (15, 1251261), (27, 695145), (33, 568755), (45, 417087), (55, 341253), (81, 231715), (99, 189585), (121, 155115), (135, 139029), (165, 113751), (297, 63195), (363, 51705), (383, 49005), (405, 46343), (495, 37917), (605, 31023), (891, 21065), (1089, 17235), (1149, 16335), (1485, 12639), (1815, 10341), (1915, 9801), (3267, 5745), (3447, 5445), (4213, 4455)]