221575347

素因数分解:

$3^2\times 7^1\times {\mathrm{277}}^1\times {\mathrm{12697}}^1$

素因数の和:12987

約数の個数: 24

約数和(自身を含む): 367124576

約数和(自身を除く): 145549229

約数列:

[1, 3, 7, 9, 21, 63, 277, 831, 1939, 2493, 5817, 12697, 17451, 38091, 88879, 114273, 266637, 799911, 3517069, 10551207, 24619483, 31653621, 73858449, 221575347]

約数ペア:

[(1, 221575347), (3, 73858449), (7, 31653621), (9, 24619483), (21, 10551207), (63, 3517069), (277, 799911), (831, 266637), (1939, 114273), (2493, 88879), (5817, 38091), (12697, 17451)]