21776573

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3923}}^1$

素因数の和:4004

約数の個数: 16

約数和(自身を含む): 27248256

約数和(自身を除く): 5471683

約数列:

[1, 7, 13, 61, 91, 427, 793, 3923, 5551, 27461, 50999, 239303, 356993, 1675121, 3110939, 21776573]

約数ペア:

[(1, 21776573), (7, 3110939), (13, 1675121), (61, 356993), (91, 239303), (427, 50999), (793, 27461), (3923, 5551)]