21371431

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:534

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 2267609

約数列:

[1, 17, 31, 107, 379, 527, 1819, 3317, 6443, 11749, 40553, 56389, 199733, 689401, 1257143, 21371431]

約数ペア:

[(1, 21371431), (17, 1257143), (31, 689401), (107, 199733), (379, 56389), (527, 40553), (1819, 11749), (3317, 6443)]