647820873

素因数分解:

$3^2\times 7^1\times {\mathrm{10282871}}^1$

素因数の和:10282884

約数の個数: 12

約数和(自身を含む): 1069418688

約数和(自身を除く): 421597815

約数列:

[1, 3, 7, 9, 21, 63, 10282871, 30848613, 71980097, 92545839, 215940291, 647820873]

約数ペア:

[(1, 647820873), (3, 215940291), (7, 92545839), (9, 71980097), (21, 30848613), (63, 10282871)]