19905065

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1097}}^1$

素因数の和:1312

約数の個数: 16

約数和(自身を含む): 25297920

約数和(自身を除く): 5392855

約数列:

[1, 5, 19, 95, 191, 955, 1097, 3629, 5485, 18145, 20843, 104215, 209527, 1047635, 3981013, 19905065]

約数ペア:

[(1, 19905065), (5, 3981013), (19, 1047635), (95, 209527), (191, 104215), (955, 20843), (1097, 18145), (3629, 5485)]