21406064

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25243}}^1$

素因数の和:25304

約数の個数: 20

約数和(自身を含む): 42258456

約数和(自身を除く): 20852392

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25243, 50486, 100972, 201944, 403888, 1337879, 2675758, 5351516, 10703032, 21406064]

約数ペア:

[(1, 21406064), (2, 10703032), (4, 5351516), (8, 2675758), (16, 1337879), (53, 403888), (106, 201944), (212, 100972), (424, 50486), (848, 25243)]