19713850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{2333}}^1$

素因数の和:2371

約数の個数: 36

約数和(自身を含む): 39722346

約数和(自身を除く): 20008496

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 2333, 4225, 4666, 8450, 11665, 23330, 30329, 58325, 60658, 116650, 151645, 303290, 394277, 758225, 788554, 1516450, 1971385, 3942770, 9856925, 19713850]

約数ペア:

[(1, 19713850), (2, 9856925), (5, 3942770), (10, 1971385), (13, 1516450), (25, 788554), (26, 758225), (50, 394277), (65, 303290), (130, 151645), (169, 116650), (325, 60658), (338, 58325), (650, 30329), (845, 23330), (1690, 11665), (2333, 8450), (4225, 4666)]