19968826

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1\times {\mathrm{601}}^1$

素因数の和:1089

約数の個数: 16

約数和(自身を含む): 30882600

約数和(自身を除く): 10913774

約数列:

[1, 2, 37, 74, 449, 601, 898, 1202, 16613, 22237, 33226, 44474, 269849, 539698, 9984413, 19968826]

約数ペア:

[(1, 19968826), (2, 9984413), (37, 539698), (74, 269849), (449, 44474), (601, 33226), (898, 22237), (1202, 16613)]