20947425

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{9631}}^1$

素因数の和:9673

約数の個数: 24

約数和(自身を含む): 35831040

約数和(自身を除く): 14883615

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 2175, 9631, 28893, 48155, 144465, 240775, 279299, 722325, 837897, 1396495, 4189485, 6982475, 20947425]

約数ペア:

[(1, 20947425), (3, 6982475), (5, 4189485), (15, 1396495), (25, 837897), (29, 722325), (75, 279299), (87, 240775), (145, 144465), (435, 48155), (725, 28893), (2175, 9631)]