19878825

素因数分解:

$3^1\times 5^2\times {\mathrm{239}}^1\times {\mathrm{1109}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 33033600

約数和(自身を除く): 13154775

約数列:

[1, 3, 5, 15, 25, 75, 239, 717, 1109, 1195, 3327, 3585, 5545, 5975, 16635, 17925, 27725, 83175, 265051, 795153, 1325255, 3975765, 6626275, 19878825]

約数ペア:

[(1, 19878825), (3, 6626275), (5, 3975765), (15, 1325255), (25, 795153), (75, 265051), (239, 83175), (717, 27725), (1109, 17925), (1195, 16635), (3327, 5975), (3585, 5545)]