18251961

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{9551}}^1$

素因数の和:9581

約数の個数: 24

約数和(自身を含む): 30489984

約数和(自身を除く): 12238023

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 9551, 28653, 66857, 124163, 200571, 372489, 467999, 869141, 1403997, 2607423, 6083987, 18251961]

約数ペア:

[(1, 18251961), (3, 6083987), (7, 2607423), (13, 1403997), (21, 869141), (39, 467999), (49, 372489), (91, 200571), (147, 124163), (273, 66857), (637, 28653), (1911, 9551)]