21206628

素因数分解:

$2^2\times 3^2\times {\mathrm{457}}^1\times {\mathrm{1289}}^1$

素因数の和:1756

約数の個数: 36

約数和(自身を含む): 53764620

約数和(自身を除く): 32557992

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 457, 914, 1289, 1371, 1828, 2578, 2742, 3867, 4113, 5156, 5484, 7734, 8226, 11601, 15468, 16452, 23202, 46404, 589073, 1178146, 1767219, 2356292, 3534438, 5301657, 7068876, 10603314, 21206628]

約数ペア:

[(1, 21206628), (2, 10603314), (3, 7068876), (4, 5301657), (6, 3534438), (9, 2356292), (12, 1767219), (18, 1178146), (36, 589073), (457, 46404), (914, 23202), (1289, 16452), (1371, 15468), (1828, 11601), (2578, 8226), (2742, 7734), (3867, 5484), (4113, 5156)]