18907245

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{311}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 37769472

約数和(自身を除く): 18862227

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 193, 311, 315, 579, 933, 965, 1351, 1555, 1737, 2177, 2799, 2895, 4053, 4665, 6531, 6755, 8685, 10885, 12159, 13995, 19593, 20265, 32655, 60023, 60795, 97965, 180069, 300115, 420161, 540207, 900345, 1260483, 2100805, 2701035, 3781449, 6302415, 18907245]

約数ペア:

[(1, 18907245), (3, 6302415), (5, 3781449), (7, 2701035), (9, 2100805), (15, 1260483), (21, 900345), (35, 540207), (45, 420161), (63, 300115), (105, 180069), (193, 97965), (311, 60795), (315, 60023), (579, 32655), (933, 20265), (965, 19593), (1351, 13995), (1555, 12159), (1737, 10885), (2177, 8685), (2799, 6755), (2895, 6531), (4053, 4665)]