21599305

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1283}}^1$

素因数の和:1345

約数の個数: 32

約数和(自身を含む): 32788224

約数和(自身を除く): 11188919

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1283, 1295, 2405, 3367, 6415, 8981, 16679, 16835, 44905, 47471, 83395, 116753, 237355, 332297, 583765, 617123, 1661485, 3085615, 4319861, 21599305]

約数ペア:

[(1, 21599305), (5, 4319861), (7, 3085615), (13, 1661485), (35, 617123), (37, 583765), (65, 332297), (91, 237355), (185, 116753), (259, 83395), (455, 47471), (481, 44905), (1283, 16835), (1295, 16679), (2405, 8981), (3367, 6415)]