18720204

素因数分解:

$2^2\times 3^1\times {\mathrm{653}}^1\times {\mathrm{2389}}^1$

素因数の和:3049

約数の個数: 24

約数和(自身を含む): 43765680

約数和(自身を除く): 25045476

約数列:

[1, 2, 3, 4, 6, 12, 653, 1306, 1959, 2389, 2612, 3918, 4778, 7167, 7836, 9556, 14334, 28668, 1560017, 3120034, 4680051, 6240068, 9360102, 18720204]

約数ペア:

[(1, 18720204), (2, 9360102), (3, 6240068), (4, 4680051), (6, 3120034), (12, 1560017), (653, 28668), (1306, 14334), (1959, 9556), (2389, 7836), (2612, 7167), (3918, 4778)]