221013331

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{619}}^1\times {\mathrm{4637}}^1$

素因数の和:5274

約数の個数: 16

約数和(自身を含む): 276053760

約数和(自身を除く): 55040429

約数列:

[1, 7, 11, 77, 619, 4333, 4637, 6809, 32459, 47663, 51007, 357049, 2870303, 20092121, 31573333, 221013331]

約数ペア:

[(1, 221013331), (7, 31573333), (11, 20092121), (77, 2870303), (619, 357049), (4333, 51007), (4637, 47663), (6809, 32459)]