20101995

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4337}}^1$

素因数の和:4451

約数の個数: 24

約数和(自身を含む): 35189856

約数和(自身を除く): 15087861

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4337, 4635, 13011, 21685, 39033, 65055, 195165, 446711, 1340133, 2233555, 4020399, 6700665, 20101995]

約数ペア:

[(1, 20101995), (3, 6700665), (5, 4020399), (9, 2233555), (15, 1340133), (45, 446711), (103, 195165), (309, 65055), (515, 39033), (927, 21685), (1545, 13011), (4337, 4635)]