19987816

素因数分解:

$2^3\times {\mathrm{1129}}^1\times {\mathrm{2213}}^1$

素因数の和:3348

約数の個数: 16

約数和(自身を含む): 37527300

約数和(自身を除く): 17539484

約数列:

[1, 2, 4, 8, 1129, 2213, 2258, 4426, 4516, 8852, 9032, 17704, 2498477, 4996954, 9993908, 19987816]

約数ペア:

[(1, 19987816), (2, 9993908), (4, 4996954), (8, 2498477), (1129, 17704), (2213, 9032), (2258, 8852), (4426, 4516)]