21431458

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{137}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 35411904

約数和(自身を除く): 13980446

約数列:

[1, 2, 17, 34, 43, 86, 107, 137, 214, 274, 731, 1462, 1819, 2329, 3638, 4601, 4658, 5891, 9202, 11782, 14659, 29318, 78217, 100147, 156434, 200294, 249203, 498406, 630337, 1260674, 10715729, 21431458]

約数ペア:

[(1, 21431458), (2, 10715729), (17, 1260674), (34, 630337), (43, 498406), (86, 249203), (107, 200294), (137, 156434), (214, 100147), (274, 78217), (731, 29318), (1462, 14659), (1819, 11782), (2329, 9202), (3638, 5891), (4601, 4658)]