21867573

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11443}}^1$

素因数の和:11473

約数の個数: 24

約数和(自身を含む): 36529248

約数和(自身を除く): 14661675

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11443, 34329, 80101, 148759, 240303, 446277, 560707, 1041313, 1682121, 3123939, 7289191, 21867573]

約数ペア:

[(1, 21867573), (3, 7289191), (7, 3123939), (13, 1682121), (21, 1041313), (39, 560707), (49, 446277), (91, 240303), (147, 148759), (273, 80101), (637, 34329), (1911, 11443)]