21630681

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3821}}^1$

素因数の和:3881

約数の個数: 24

約数和(自身を含む): 33985224

約数和(自身を除く): 12354543

約数列:

[1, 3, 9, 17, 37, 51, 111, 153, 333, 629, 1887, 3821, 5661, 11463, 34389, 64957, 141377, 194871, 424131, 584613, 1272393, 2403409, 7210227, 21630681]

約数ペア:

[(1, 21630681), (3, 7210227), (9, 2403409), (17, 1272393), (37, 584613), (51, 424131), (111, 194871), (153, 141377), (333, 64957), (629, 34389), (1887, 11463), (3821, 5661)]