18845505

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2063}}^1$

素因数の和:2110

約数の個数: 48

約数和(自身を含む): 38638080

約数和(自身を除く): 19792575

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 2063, 3045, 6189, 9135, 10315, 14441, 18567, 30945, 43323, 59827, 72205, 92835, 129969, 179481, 216615, 299135, 418789, 538443, 649845, 897405, 1256367, 2093945, 2692215, 3769101, 6281835, 18845505]

約数ペア:

[(1, 18845505), (3, 6281835), (5, 3769101), (7, 2692215), (9, 2093945), (15, 1256367), (21, 897405), (29, 649845), (35, 538443), (45, 418789), (63, 299135), (87, 216615), (105, 179481), (145, 129969), (203, 92835), (261, 72205), (315, 59827), (435, 43323), (609, 30945), (1015, 18567), (1305, 14441), (1827, 10315), (2063, 9135), (3045, 6189)]