19784966

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:516

約数の個数: 24

約数和(自身を含む): 31866840

約数和(自身を除く): 12081874

約数列:

[1, 2, 19, 38, 67, 134, 361, 409, 722, 818, 1273, 2546, 7771, 15542, 24187, 27403, 48374, 54806, 147649, 295298, 520657, 1041314, 9892483, 19784966]

約数ペア:

[(1, 19784966), (2, 9892483), (19, 1041314), (38, 520657), (67, 295298), (134, 147649), (361, 54806), (409, 48374), (722, 27403), (818, 24187), (1273, 15542), (2546, 7771)]