19881430

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{86441}}^1$

素因数の和:86471

約数の個数: 16

約数和(自身を含む): 37342944

約数和(自身を除く): 17461514

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 86441, 172882, 432205, 864410, 1988143, 3976286, 9940715, 19881430]

約数ペア:

[(1, 19881430), (2, 9940715), (5, 3976286), (10, 1988143), (23, 864410), (46, 432205), (115, 172882), (230, 86441)]