19806516

素因数分解:

$2^2\times 3^2\times {\mathrm{550181}}^1$

素因数の和:550191

約数の個数: 18

約数和(自身を含む): 50066562

約数和(自身を除く): 30260046

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 550181, 1100362, 1650543, 2200724, 3301086, 4951629, 6602172, 9903258, 19806516]

約数ペア:

[(1, 19806516), (2, 9903258), (3, 6602172), (4, 4951629), (6, 3301086), (9, 2200724), (12, 1650543), (18, 1100362), (36, 550181)]