287777217

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{5519}}^1$

素因数の和:5733

約数の個数: 32

約数和(自身を含む): 474808320

約数和(自身を除く): 187031103

約数列:

[1, 3, 7, 13, 21, 39, 91, 191, 273, 573, 1337, 2483, 4011, 5519, 7449, 16557, 17381, 38633, 52143, 71747, 115899, 215241, 502229, 1054129, 1506687, 3162387, 7378903, 13703677, 22136709, 41111031, 95925739, 287777217]

約数ペア:

[(1, 287777217), (3, 95925739), (7, 41111031), (13, 22136709), (21, 13703677), (39, 7378903), (91, 3162387), (191, 1506687), (273, 1054129), (573, 502229), (1337, 215241), (2483, 115899), (4011, 71747), (5519, 52143), (7449, 38633), (16557, 17381)]