19259721

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1483}}^1$

素因数の和:1542

約数の個数: 32

約数和(自身を含む): 31579520

約数和(自身を除く): 12319799

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 333, 351, 481, 999, 1443, 1483, 4329, 4449, 12987, 13347, 19279, 40041, 54871, 57837, 164613, 173511, 493839, 520533, 713323, 1481517, 2139969, 6419907, 19259721]

約数ペア:

[(1, 19259721), (3, 6419907), (9, 2139969), (13, 1481517), (27, 713323), (37, 520533), (39, 493839), (111, 173511), (117, 164613), (333, 57837), (351, 54871), (481, 40041), (999, 19279), (1443, 13347), (1483, 12987), (4329, 4449)]