12903381

素因数分解:

$3^4\times {\mathrm{241}}^1\times {\mathrm{661}}^1$

素因数の和:914

約数の個数: 20

約数和(自身を含む): 19384684

約数和(自身を除く): 6481303

約数列:

[1, 3, 9, 27, 81, 241, 661, 723, 1983, 2169, 5949, 6507, 17847, 19521, 53541, 159301, 477903, 1433709, 4301127, 12903381]

約数ペア:

[(1, 12903381), (3, 4301127), (9, 1433709), (27, 477903), (81, 159301), (241, 53541), (661, 19521), (723, 17847), (1983, 6507), (2169, 5949)]