19913886

素因数分解:

$2^1\times 3^2\times {\mathrm{743}}^1\times {\mathrm{1489}}^1$

素因数の和:2240

約数の個数: 24

約数和(自身を含む): 43233840

約数和(自身を除く): 23319954

約数列:

[1, 2, 3, 6, 9, 18, 743, 1486, 1489, 2229, 2978, 4458, 4467, 6687, 8934, 13374, 13401, 26802, 1106327, 2212654, 3318981, 6637962, 9956943, 19913886]

約数ペア:

[(1, 19913886), (2, 9956943), (3, 6637962), (6, 3318981), (9, 2212654), (18, 1106327), (743, 26802), (1486, 13401), (1489, 13374), (2229, 8934), (2978, 6687), (4458, 4467)]