21120086

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{673}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 36687168

約数和(自身を除く): 15567082

約数列:

[1, 2, 13, 17, 26, 34, 71, 142, 221, 442, 673, 923, 1207, 1346, 1846, 2414, 8749, 11441, 15691, 17498, 22882, 31382, 47783, 95566, 148733, 297466, 621179, 812311, 1242358, 1624622, 10560043, 21120086]

約数ペア:

[(1, 21120086), (2, 10560043), (13, 1624622), (17, 1242358), (26, 812311), (34, 621179), (71, 297466), (142, 148733), (221, 95566), (442, 47783), (673, 31382), (923, 22882), (1207, 17498), (1346, 15691), (1846, 11441), (2414, 8749)]