19949420817

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{51548891}}^1$

素因数の和:51548940

約数の個数: 12

約数和(自身を含む): 29485966224

約数和(自身を除く): 9536545407

約数列:

[1, 3, 9, 43, 129, 387, 51548891, 154646673, 463940019, 2216602313, 6649806939, 19949420817]

約数ペア:

[(1, 19949420817), (3, 6649806939), (9, 2216602313), (43, 463940019), (129, 154646673), (387, 51548891)]