721551321

素因数分解:

$3^5\times {\mathrm{271}}^1\times {\mathrm{10957}}^1$

素因数の和:11243

約数の個数: 24

約数和(自身を含む): 1084929664

約数和(自身を除く): 363378343

約数列:

[1, 3, 9, 27, 81, 243, 271, 813, 2439, 7317, 10957, 21951, 32871, 65853, 98613, 295839, 887517, 2662551, 2969347, 8908041, 26724123, 80172369, 240517107, 721551321]

約数ペア:

[(1, 721551321), (3, 240517107), (9, 80172369), (27, 26724123), (81, 8908041), (243, 2969347), (271, 2662551), (813, 887517), (2439, 295839), (7317, 98613), (10957, 65853), (21951, 32871)]