390081783

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{7481}}^1$

素因数の和:7695

約数の個数: 32

約数和(自身を含む): 643571712

約数和(自身を除く): 253489929

約数列:

[1, 3, 7, 13, 21, 39, 91, 191, 273, 573, 1337, 2483, 4011, 7449, 7481, 17381, 22443, 52143, 52367, 97253, 157101, 291759, 680771, 1428871, 2042313, 4286613, 10002097, 18575323, 30006291, 55725969, 130027261, 390081783]

約数ペア:

[(1, 390081783), (3, 130027261), (7, 55725969), (13, 30006291), (21, 18575323), (39, 10002097), (91, 4286613), (191, 2042313), (273, 1428871), (573, 680771), (1337, 291759), (2483, 157101), (4011, 97253), (7449, 52367), (7481, 52143), (17381, 22443)]