209686542

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{86719}}^1$

素因数の和:86768

約数の個数: 32

約数和(自身を含む): 466206720

約数和(自身を除く): 256520178

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 86719, 173438, 260157, 520314, 1127347, 2254694, 2688289, 3382041, 5376578, 6764082, 8064867, 16129734, 34947757, 69895514, 104843271, 209686542]

約数ペア:

[(1, 209686542), (2, 104843271), (3, 69895514), (6, 34947757), (13, 16129734), (26, 8064867), (31, 6764082), (39, 5376578), (62, 3382041), (78, 2688289), (93, 2254694), (186, 1127347), (403, 520314), (806, 260157), (1209, 173438), (2418, 86719)]