205156791

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1439}}^1$

素因数の和:1556

約数の個数: 48

約数和(自身を含む): 354631680

約数和(自身を除く): 149474889

約数列:

[1, 3, 7, 9, 21, 31, 63, 73, 93, 217, 219, 279, 511, 651, 657, 1439, 1533, 1953, 2263, 4317, 4599, 6789, 10073, 12951, 15841, 20367, 30219, 44609, 47523, 90657, 105047, 133827, 142569, 312263, 315141, 401481, 735329, 936789, 945423, 2205987, 2810367, 3256457, 6617961, 9769371, 22795199, 29308113, 68385597, 205156791]

約数ペア:

[(1, 205156791), (3, 68385597), (7, 29308113), (9, 22795199), (21, 9769371), (31, 6617961), (63, 3256457), (73, 2810367), (93, 2205987), (217, 945423), (219, 936789), (279, 735329), (511, 401481), (651, 315141), (657, 312263), (1439, 142569), (1533, 133827), (1953, 105047), (2263, 90657), (4317, 47523), (4599, 44609), (6789, 30219), (10073, 20367), (12951, 15841)]