19995217

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{307}}^1$

素因数の和:540

約数の個数: 16

約数和(自身を含む): 22708224

約数和(自身を除く): 2713007

約数列:

[1, 11, 31, 191, 307, 341, 2101, 3377, 5921, 9517, 58637, 65131, 104687, 645007, 1817747, 19995217]

約数ペア:

[(1, 19995217), (11, 1817747), (31, 645007), (191, 104687), (307, 65131), (341, 58637), (2101, 9517), (3377, 5921)]