18199995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1511}}^1$

素因数の和:1603

約数の個数: 32

約数和(自身を含む): 32223744

約数和(自身を除く): 14023749

約数列:

[1, 3, 5, 11, 15, 33, 55, 73, 165, 219, 365, 803, 1095, 1511, 2409, 4015, 4533, 7555, 12045, 16621, 22665, 49863, 83105, 110303, 249315, 330909, 551515, 1213333, 1654545, 3639999, 6066665, 18199995]

約数ペア:

[(1, 18199995), (3, 6066665), (5, 3639999), (11, 1654545), (15, 1213333), (33, 551515), (55, 330909), (73, 249315), (165, 110303), (219, 83105), (365, 49863), (803, 22665), (1095, 16621), (1511, 12045), (2409, 7555), (4015, 4533)]