30815757

素因数分解:

$3^2\times 7^2\times {\mathrm{69877}}^1$

素因数の和:69897

約数の個数: 18

約数和(自身を含む): 51779598

約数和(自身を除く): 20963841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 69877, 209631, 489139, 628893, 1467417, 3423973, 4402251, 10271919, 30815757]

約数ペア:

[(1, 30815757), (3, 10271919), (7, 4402251), (9, 3423973), (21, 1467417), (49, 628893), (63, 489139), (147, 209631), (441, 69877)]