21059109

素因数分解:

$3^5\times {\mathrm{79}}^1\times {\mathrm{1097}}^1$

素因数の和:1191

約数の個数: 24

約数和(自身を含む): 31973760

約数和(自身を除く): 10914651

約数列:

[1, 3, 9, 27, 79, 81, 237, 243, 711, 1097, 2133, 3291, 6399, 9873, 19197, 29619, 86663, 88857, 259989, 266571, 779967, 2339901, 7019703, 21059109]

約数ペア:

[(1, 21059109), (3, 7019703), (9, 2339901), (27, 779967), (79, 266571), (81, 259989), (237, 88857), (243, 86663), (711, 29619), (1097, 19197), (2133, 9873), (3291, 6399)]