19988852

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{1429}}^1$

素因数の和:1715

約数の個数: 24

約数和(自身を含む): 37837800

約数和(自身を除く): 17848948

約数列:

[1, 2, 4, 13, 26, 52, 269, 538, 1076, 1429, 2858, 3497, 5716, 6994, 13988, 18577, 37154, 74308, 384401, 768802, 1537604, 4997213, 9994426, 19988852]

約数ペア:

[(1, 19988852), (2, 9994426), (4, 4997213), (13, 1537604), (26, 768802), (52, 384401), (269, 74308), (538, 37154), (1076, 18577), (1429, 13988), (2858, 6994), (3497, 5716)]