7881867

素因数分解:

$3^4\times 7^1\times {\mathrm{13901}}^1$

素因数の和:13920

約数の個数: 20

約数和(自身を含む): 13457136

約数和(自身を除く): 5575269

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 13901, 41703, 97307, 125109, 291921, 375327, 875763, 1125981, 2627289, 7881867]

約数ペア:

[(1, 7881867), (3, 2627289), (7, 1125981), (9, 875763), (21, 375327), (27, 291921), (63, 125109), (81, 97307), (189, 41703), (567, 13901)]