320420247

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1\times {\mathrm{1487}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 505872384

約数和(自身を除く): 185452137

約数列:

[1, 3, 7, 21, 31, 93, 217, 331, 651, 993, 1487, 2317, 4461, 6951, 10261, 10409, 30783, 31227, 46097, 71827, 138291, 215481, 322679, 492197, 968037, 1476591, 3445379, 10336137, 15258107, 45774321, 106806749, 320420247]

約数ペア:

[(1, 320420247), (3, 106806749), (7, 45774321), (21, 15258107), (31, 10336137), (93, 3445379), (217, 1476591), (331, 968037), (651, 492197), (993, 322679), (1487, 215481), (2317, 138291), (4461, 71827), (6951, 46097), (10261, 31227), (10409, 30783)]