21219382

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{1801}}^1$

素因数の和:1983

約数の個数: 16

約数和(自身を含む): 32825232

約数和(自身を除く): 11605850

約数列:

[1, 2, 43, 86, 137, 274, 1801, 3602, 5891, 11782, 77443, 154886, 246737, 493474, 10609691, 21219382]

約数ペア:

[(1, 21219382), (2, 10609691), (43, 493474), (86, 246737), (137, 154886), (274, 77443), (1801, 11782), (3602, 5891)]