21995065

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5647}}^1$

素因数の和:5712

約数の個数: 16

約数和(自身を含む): 28465920

約数和(自身を除く): 6470855

約数列:

[1, 5, 19, 41, 95, 205, 779, 3895, 5647, 28235, 107293, 231527, 536465, 1157635, 4399013, 21995065]

約数ペア:

[(1, 21995065), (5, 4399013), (19, 1157635), (41, 536465), (95, 231527), (205, 107293), (779, 28235), (3895, 5647)]