81921819

素因数分解:

$3^1\times 7^1\times {\mathrm{1231}}^1\times {\mathrm{3169}}^1$

素因数の和:4410

約数の個数: 16

約数和(自身を含む): 124974080

約数和(自身を除く): 43052261

約数列:

[1, 3, 7, 21, 1231, 3169, 3693, 8617, 9507, 22183, 25851, 66549, 3901039, 11703117, 27307273, 81921819]

約数ペア:

[(1, 81921819), (3, 27307273), (7, 11703117), (21, 3901039), (1231, 66549), (3169, 25851), (3693, 22183), (8617, 9507)]