19987974

素因数分解:

$2^1\times 3^2\times {\mathrm{103}}^1\times {\mathrm{10781}}^1$

素因数の和:10892

約数の個数: 24

約数和(自身を含む): 43731792

約数和(自身を除く): 23743818

約数列:

[1, 2, 3, 6, 9, 18, 103, 206, 309, 618, 927, 1854, 10781, 21562, 32343, 64686, 97029, 194058, 1110443, 2220886, 3331329, 6662658, 9993987, 19987974]

約数ペア:

[(1, 19987974), (2, 9993987), (3, 6662658), (6, 3331329), (9, 2220886), (18, 1110443), (103, 194058), (206, 97029), (309, 64686), (618, 32343), (927, 21562), (1854, 10781)]