61871103

素因数分解:

$3^2\times 7^1\times {\mathrm{991}}^2$

素因数の和:1995

約数の個数: 18

約数和(自身を含む): 102239592

約数和(自身を除く): 40368489

約数列:

[1, 3, 7, 9, 21, 63, 991, 2973, 6937, 8919, 20811, 62433, 982081, 2946243, 6874567, 8838729, 20623701, 61871103]

約数ペア:

[(1, 61871103), (3, 20623701), (7, 8838729), (9, 6874567), (21, 2946243), (63, 982081), (991, 62433), (2973, 20811), (6937, 8919)]