209489714

素因数分解:

$2^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1\times {\mathrm{457}}^1$

素因数の和:842

約数の個数: 32

約数和(自身を含む): 364055040

約数和(自身を除く): 154565326

約数列:

[1, 2, 7, 14, 137, 239, 274, 457, 478, 914, 959, 1673, 1918, 3199, 3346, 6398, 32743, 62609, 65486, 109223, 125218, 218446, 229201, 438263, 458402, 764561, 876526, 1529122, 14963551, 29927102, 104744857, 209489714]

約数ペア:

[(1, 209489714), (2, 104744857), (7, 29927102), (14, 14963551), (137, 1529122), (239, 876526), (274, 764561), (457, 458402), (478, 438263), (914, 229201), (959, 218446), (1673, 125218), (1918, 109223), (3199, 65486), (3346, 62609), (6398, 32743)]