19878814

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{13597}}^1$

素因数の和:13659

約数の個数: 16

約数和(自身を含む): 32308848

約数和(自身を除く): 12430034

約数列:

[1, 2, 17, 34, 43, 86, 731, 1462, 13597, 27194, 231149, 462298, 584671, 1169342, 9939407, 19878814]

約数ペア:

[(1, 19878814), (2, 9939407), (17, 1169342), (34, 584671), (43, 462298), (86, 231149), (731, 27194), (1462, 13597)]