18945693

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{1433}}^1$

素因数の和:1565

約数の個数: 24

約数和(自身を含む): 29752632

約数和(自身を除く): 10806939

約数列:

[1, 3, 9, 13, 39, 113, 117, 339, 1017, 1433, 1469, 4299, 4407, 12897, 13221, 18629, 55887, 161929, 167661, 485787, 1457361, 2105077, 6315231, 18945693]

約数ペア:

[(1, 18945693), (3, 6315231), (9, 2105077), (13, 1457361), (39, 485787), (113, 167661), (117, 161929), (339, 55887), (1017, 18629), (1433, 13221), (1469, 12897), (4299, 4407)]