21486690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1237}}^1$

素因数の和:1443

約数の個数: 48

約数和(自身を含む): 56200248

約数和(自身を除く): 34713558

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 193, 386, 579, 965, 1158, 1237, 1737, 1930, 2474, 2895, 3474, 3711, 5790, 6185, 7422, 8685, 11133, 12370, 17370, 18555, 22266, 37110, 55665, 111330, 238741, 477482, 716223, 1193705, 1432446, 2148669, 2387410, 3581115, 4297338, 7162230, 10743345, 21486690]

約数ペア:

[(1, 21486690), (2, 10743345), (3, 7162230), (5, 4297338), (6, 3581115), (9, 2387410), (10, 2148669), (15, 1432446), (18, 1193705), (30, 716223), (45, 477482), (90, 238741), (193, 111330), (386, 55665), (579, 37110), (965, 22266), (1158, 18555), (1237, 17370), (1737, 12370), (1930, 11133), (2474, 8685), (2895, 7422), (3474, 6185), (3711, 5790)]