18564795

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1993}}^1$

素因数の和:2033

約数の個数: 40

約数和(自身を含む): 34743456

約数和(自身を除く): 16178661

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 1993, 3105, 5979, 9315, 9965, 17937, 29895, 45839, 53811, 89685, 137517, 161433, 229195, 269055, 412551, 687585, 807165, 1237653, 2062755, 3712959, 6188265, 18564795]

約数ペア:

[(1, 18564795), (3, 6188265), (5, 3712959), (9, 2062755), (15, 1237653), (23, 807165), (27, 687585), (45, 412551), (69, 269055), (81, 229195), (115, 161433), (135, 137517), (207, 89685), (345, 53811), (405, 45839), (621, 29895), (1035, 17937), (1863, 9965), (1993, 9315), (3105, 5979)]