18940995

素因数分解:

$3^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1213}}^1$

素因数の和:1571

約数の個数: 24

約数和(自身を含む): 32952816

約数和(自身を除く): 14011821

約数列:

[1, 3, 5, 9, 15, 45, 347, 1041, 1213, 1735, 3123, 3639, 5205, 6065, 10917, 15615, 18195, 54585, 420911, 1262733, 2104555, 3788199, 6313665, 18940995]

約数ペア:

[(1, 18940995), (3, 6313665), (5, 3788199), (9, 2104555), (15, 1262733), (45, 420911), (347, 54585), (1041, 18195), (1213, 15615), (1735, 10917), (3123, 6065), (3639, 5205)]