61784289

素因数分解:

$3^4\times 7^1\times {\mathrm{108967}}^1$

素因数の和:108986

約数の個数: 20

約数和(自身を含む): 105481024

約数和(自身を除く): 43696735

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 108967, 326901, 762769, 980703, 2288307, 2942109, 6864921, 8826327, 20594763, 61784289]

約数ペア:

[(1, 61784289), (3, 20594763), (7, 8826327), (9, 6864921), (21, 2942109), (27, 2288307), (63, 980703), (81, 762769), (189, 326901), (567, 108967)]