18005895

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1933}}^1$

素因数の和:1973

約数の個数: 40

約数和(自身を含む): 33698016

約数和(自身を除く): 15692121

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 1933, 3105, 5799, 9315, 9665, 17397, 28995, 44459, 52191, 86985, 133377, 156573, 222295, 260955, 400131, 666885, 782865, 1200393, 2000655, 3601179, 6001965, 18005895]

約数ペア:

[(1, 18005895), (3, 6001965), (5, 3601179), (9, 2000655), (15, 1200393), (23, 782865), (27, 666885), (45, 400131), (69, 260955), (81, 222295), (115, 156573), (135, 133377), (207, 86985), (345, 52191), (405, 44459), (621, 28995), (1035, 17397), (1863, 9665), (1933, 9315), (3105, 5799)]