20895747

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1\times {\mathrm{521}}^1$

素因数の和:1014

約数の個数: 16

約数和(自身を含む): 28939680

約数和(自身を除く): 8043933

約数列:

[1, 3, 29, 87, 461, 521, 1383, 1563, 13369, 15109, 40107, 45327, 240181, 720543, 6965249, 20895747]

約数ペア:

[(1, 20895747), (3, 6965249), (29, 720543), (87, 240181), (461, 45327), (521, 40107), (1383, 15109), (1563, 13369)]