203204421

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{15889}}^1$

素因数の和:15938

約数の個数: 36

約数和(自身を含む): 353234700

約数和(自身を除く): 150030279

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 261, 441, 609, 1421, 1827, 4263, 12789, 15889, 47667, 111223, 143001, 333669, 460781, 778561, 1001007, 1382343, 2335683, 3225467, 4147029, 7007049, 9676401, 22578269, 29029203, 67734807, 203204421]

約数ペア:

[(1, 203204421), (3, 67734807), (7, 29029203), (9, 22578269), (21, 9676401), (29, 7007049), (49, 4147029), (63, 3225467), (87, 2335683), (147, 1382343), (203, 1001007), (261, 778561), (441, 460781), (609, 333669), (1421, 143001), (1827, 111223), (4263, 47667), (12789, 15889)]