20980926

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16417}}^1$

素因数の和:16496

約数の個数: 24

約数和(自身を含む): 46101744

約数和(自身を除く): 25120818

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16417, 32834, 49251, 98502, 147753, 295506, 1165607, 2331214, 3496821, 6993642, 10490463, 20980926]

約数ペア:

[(1, 20980926), (2, 10490463), (3, 6993642), (6, 3496821), (9, 2331214), (18, 1165607), (71, 295506), (142, 147753), (213, 98502), (426, 49251), (639, 32834), (1278, 16417)]