18382221

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 33817056

約数和(自身を除く): 15434835

約数列:

[1, 3, 9, 11, 13, 23, 27, 33, 39, 69, 81, 99, 117, 143, 207, 243, 253, 297, 299, 351, 429, 529, 621, 759, 891, 897, 1053, 1287, 1587, 1863, 2277, 2673, 2691, 3159, 3289, 3861, 4761, 5589, 5819, 6831, 6877, 8073, 9867, 11583, 14283, 17457, 20493, 20631, 24219, 29601, 34749, 42849, 52371, 61479, 61893, 72657, 75647, 88803, 128547, 157113, 185679, 226941, 266409, 471339, 557037, 680823, 799227, 1414017, 1671111, 2042469, 6127407, 18382221]

約数ペア:

[(1, 18382221), (3, 6127407), (9, 2042469), (11, 1671111), (13, 1414017), (23, 799227), (27, 680823), (33, 557037), (39, 471339), (69, 266409), (81, 226941), (99, 185679), (117, 157113), (143, 128547), (207, 88803), (243, 75647), (253, 72657), (297, 61893), (299, 61479), (351, 52371), (429, 42849), (529, 34749), (621, 29601), (759, 24219), (891, 20631), (897, 20493), (1053, 17457), (1287, 14283), (1587, 11583), (1863, 9867), (2277, 8073), (2673, 6877), (2691, 6831), (3159, 5819), (3289, 5589), (3861, 4761)]