21963905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5639}}^1$

素因数の和:5704

約数の個数: 16

約数和(自身を含む): 28425600

約数和(自身を除く): 6461695

約数列:

[1, 5, 19, 41, 95, 205, 779, 3895, 5639, 28195, 107141, 231199, 535705, 1155995, 4392781, 21963905]

約数ペア:

[(1, 21963905), (5, 4392781), (19, 1155995), (41, 535705), (95, 231199), (205, 107141), (779, 28195), (3895, 5639)]