20687732

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20939}}^1$

素因数の和:20975

約数の個数: 24

約数和(自身を含む): 41042400

約数和(自身を除く): 20354668

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 20939, 41878, 83756, 272207, 397841, 544414, 795682, 1088828, 1591364, 5171933, 10343866, 20687732]

約数ペア:

[(1, 20687732), (2, 10343866), (4, 5171933), (13, 1591364), (19, 1088828), (26, 795682), (38, 544414), (52, 397841), (76, 272207), (247, 83756), (494, 41878), (988, 20939)]