19940878

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{307}}^1\times {\mathrm{691}}^1$

素因数の和:1047

約数の個数: 16

約数和(自身を含む): 30691584

約数和(自身を除く): 10750706

約数列:

[1, 2, 47, 94, 307, 614, 691, 1382, 14429, 28858, 32477, 64954, 212137, 424274, 9970439, 19940878]

約数ペア:

[(1, 19940878), (2, 9970439), (47, 424274), (94, 212137), (307, 64954), (614, 32477), (691, 28858), (1382, 14429)]