20209428

素因数分解:

$2^2\times 3^2\times {\mathrm{561373}}^1$

素因数の和:561383

約数の個数: 18

約数和(自身を含む): 51085034

約数和(自身を除く): 30875606

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 561373, 1122746, 1684119, 2245492, 3368238, 5052357, 6736476, 10104714, 20209428]

約数ペア:

[(1, 20209428), (2, 10104714), (3, 6736476), (4, 5052357), (6, 3368238), (9, 2245492), (12, 1684119), (18, 1122746), (36, 561373)]