18012969

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 64

約数和(自身を含む): 31494400

約数和(自身を除く): 13481431

約数列:

[1, 3, 9, 13, 19, 27, 37, 39, 57, 73, 111, 117, 171, 219, 247, 333, 351, 481, 513, 657, 703, 741, 949, 999, 1387, 1443, 1971, 2109, 2223, 2701, 2847, 4161, 4329, 6327, 6669, 8103, 8541, 9139, 12483, 12987, 18031, 18981, 24309, 25623, 27417, 35113, 37449, 51319, 54093, 72927, 82251, 105339, 153957, 162279, 246753, 316017, 461871, 486837, 667147, 948051, 1385613, 2001441, 6004323, 18012969]

約数ペア:

[(1, 18012969), (3, 6004323), (9, 2001441), (13, 1385613), (19, 948051), (27, 667147), (37, 486837), (39, 461871), (57, 316017), (73, 246753), (111, 162279), (117, 153957), (171, 105339), (219, 82251), (247, 72927), (333, 54093), (351, 51319), (481, 37449), (513, 35113), (657, 27417), (703, 25623), (741, 24309), (949, 18981), (999, 18031), (1387, 12987), (1443, 12483), (1971, 9139), (2109, 8541), (2223, 8103), (2701, 6669), (2847, 6327), (4161, 4329)]