201821643

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{20899}}^1$

素因数の和:20971

約数の個数: 24

約数和(自身を含む): 309738000

約数和(自身を除く): 107916357

約数列:

[1, 3, 9, 29, 37, 87, 111, 261, 333, 1073, 3219, 9657, 20899, 62697, 188091, 606071, 773263, 1818213, 2319789, 5454639, 6959367, 22424627, 67273881, 201821643]

約数ペア:

[(1, 201821643), (3, 67273881), (9, 22424627), (29, 6959367), (37, 5454639), (87, 2319789), (111, 1818213), (261, 773263), (333, 606071), (1073, 188091), (3219, 62697), (9657, 20899)]