21028875

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{8011}}^1$

素因数の和:8036

約数の個数: 32

約数和(自身を含む): 39995904

約数和(自身を除く): 18967029

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 875, 2625, 8011, 24033, 40055, 56077, 120165, 168231, 200275, 280385, 600825, 841155, 1001375, 1401925, 3004125, 4205775, 7009625, 21028875]

約数ペア:

[(1, 21028875), (3, 7009625), (5, 4205775), (7, 3004125), (15, 1401925), (21, 1001375), (25, 841155), (35, 600825), (75, 280385), (105, 200275), (125, 168231), (175, 120165), (375, 56077), (525, 40055), (875, 24033), (2625, 8011)]