20994190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1657}}^1$

素因数の和:1852

約数の個数: 32

約数和(自身を含む): 43452864

約数和(自身を除く): 22458674

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 181, 362, 905, 1267, 1657, 1810, 2534, 3314, 6335, 8285, 11599, 12670, 16570, 23198, 57995, 115990, 299917, 599834, 1499585, 2099419, 2999170, 4198838, 10497095, 20994190]

約数ペア:

[(1, 20994190), (2, 10497095), (5, 4198838), (7, 2999170), (10, 2099419), (14, 1499585), (35, 599834), (70, 299917), (181, 115990), (362, 57995), (905, 23198), (1267, 16570), (1657, 12670), (1810, 11599), (2534, 8285), (3314, 6335)]