21684204

素因数分解:

$2^2\times 3^2\times {\mathrm{151}}^1\times {\mathrm{3989}}^1$

素因数の和:4150

約数の個数: 36

約数和(自身を含む): 55189680

約数和(自身を除く): 33505476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 151, 302, 453, 604, 906, 1359, 1812, 2718, 3989, 5436, 7978, 11967, 15956, 23934, 35901, 47868, 71802, 143604, 602339, 1204678, 1807017, 2409356, 3614034, 5421051, 7228068, 10842102, 21684204]

約数ペア:

[(1, 21684204), (2, 10842102), (3, 7228068), (4, 5421051), (6, 3614034), (9, 2409356), (12, 1807017), (18, 1204678), (36, 602339), (151, 143604), (302, 71802), (453, 47868), (604, 35901), (906, 23934), (1359, 15956), (1812, 11967), (2718, 7978), (3989, 5436)]