649974

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{641}}^1$

素因数の和:672

約数の個数: 24

約数和(自身を含む): 1409832

約数和(自身を除く): 759858

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 169, 338, 507, 641, 1014, 1282, 1923, 3846, 8333, 16666, 24999, 49998, 108329, 216658, 324987, 649974]

約数ペア:

[(1, 649974), (2, 324987), (3, 216658), (6, 108329), (13, 49998), (26, 24999), (39, 16666), (78, 8333), (169, 3846), (338, 1923), (507, 1282), (641, 1014)]