18949917

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{7583}}^1$

素因数の和:7617

約数の個数: 24

約数和(自身を含む): 31124736

約数和(自身を除く): 12174819

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 7583, 22749, 53081, 128911, 159243, 371567, 386733, 902377, 1114701, 2707131, 6316639, 18949917]

約数ペア:

[(1, 18949917), (3, 6316639), (7, 2707131), (17, 1114701), (21, 902377), (49, 386733), (51, 371567), (119, 159243), (147, 128911), (357, 53081), (833, 22749), (2499, 7583)]