21409553

素因数分解:

${\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:508

約数の個数: 16

約数和(自身を含む): 24053760

約数和(自身を除く): 2644207

約数列:

[1, 11, 71, 79, 347, 781, 869, 3817, 5609, 24637, 27413, 61699, 271007, 301543, 1946323, 21409553]

約数ペア:

[(1, 21409553), (11, 1946323), (71, 301543), (79, 271007), (347, 61699), (781, 27413), (869, 24637), (3817, 5609)]