21009315

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22961}}^1$

素因数の和:23030

約数の個数: 16

約数和(自身を含む): 34167456

約数和(自身を除く): 13158141

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 22961, 68883, 114805, 344415, 1400621, 4201863, 7003105, 21009315]

約数ペア:

[(1, 21009315), (3, 7003105), (5, 4201863), (15, 1400621), (61, 344415), (183, 114805), (305, 68883), (915, 22961)]