21134280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3323}}^1$

素因数の和:3390

約数の個数: 64

約数和(自身を含む): 64618560

約数和(自身を除く): 43484280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 318, 424, 530, 636, 795, 1060, 1272, 1590, 2120, 3180, 3323, 6360, 6646, 9969, 13292, 16615, 19938, 26584, 33230, 39876, 49845, 66460, 79752, 99690, 132920, 176119, 199380, 352238, 398760, 528357, 704476, 880595, 1056714, 1408952, 1761190, 2113428, 2641785, 3522380, 4226856, 5283570, 7044760, 10567140, 21134280]

約数ペア:

[(1, 21134280), (2, 10567140), (3, 7044760), (4, 5283570), (5, 4226856), (6, 3522380), (8, 2641785), (10, 2113428), (12, 1761190), (15, 1408952), (20, 1056714), (24, 880595), (30, 704476), (40, 528357), (53, 398760), (60, 352238), (106, 199380), (120, 176119), (159, 132920), (212, 99690), (265, 79752), (318, 66460), (424, 49845), (530, 39876), (636, 33230), (795, 26584), (1060, 19938), (1272, 16615), (1590, 13292), (2120, 9969), (3180, 6646), (3323, 6360)]