21452249

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{283}}^1$

素因数の和:334

約数の個数: 32

約数和(自身を含む): 28627200

約数和(自身を除く): 7174951

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 283, 343, 637, 833, 1547, 1981, 3679, 4459, 4811, 5831, 10829, 13867, 25753, 33677, 62543, 75803, 97069, 180271, 235739, 437801, 1261897, 1650173, 3064607, 21452249]

約数ペア:

[(1, 21452249), (7, 3064607), (13, 1650173), (17, 1261897), (49, 437801), (91, 235739), (119, 180271), (221, 97069), (283, 75803), (343, 62543), (637, 33677), (833, 25753), (1547, 13867), (1981, 10829), (3679, 5831), (4459, 4811)]