21269339

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{6317}}^1$

素因数の和:6374

約数の個数: 16

約数和(自身を含む): 26889408

約数和(自身を除く): 5620069

約数列:

[1, 7, 13, 37, 91, 259, 481, 3367, 6317, 44219, 82121, 233729, 574847, 1636103, 3038477, 21269339]

約数ペア:

[(1, 21269339), (7, 3038477), (13, 1636103), (37, 574847), (91, 233729), (259, 82121), (481, 44219), (3367, 6317)]