30976281

素因数分解:

$3^2\times 7^2\times {\mathrm{70241}}^1$

素因数の和:70261

約数の個数: 18

約数和(自身を含む): 52049322

約数和(自身を除く): 21073041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 70241, 210723, 491687, 632169, 1475061, 3441809, 4425183, 10325427, 30976281]

約数ペア:

[(1, 30976281), (3, 10325427), (7, 4425183), (9, 3441809), (21, 1475061), (49, 632169), (63, 491687), (147, 210723), (441, 70241)]