255986031

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{3359}}^1$

素因数の和:3579

約数の個数: 32

約数和(自身を含む): 412876800

約数和(自身を除く): 156890769

約数列:

[1, 3, 7, 19, 21, 57, 133, 191, 399, 573, 1337, 3359, 3629, 4011, 10077, 10887, 23513, 25403, 63821, 70539, 76209, 191463, 446747, 641569, 1340241, 1924707, 4490983, 12189811, 13472949, 36569433, 85328677, 255986031]

約数ペア:

[(1, 255986031), (3, 85328677), (7, 36569433), (19, 13472949), (21, 12189811), (57, 4490983), (133, 1924707), (191, 1340241), (399, 641569), (573, 446747), (1337, 191463), (3359, 76209), (3629, 70539), (4011, 63821), (10077, 25403), (10887, 23513)]