20679915

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 34122816

約数和(自身を除く): 13442901

約数列:

[1, 3, 5, 15, 61, 97, 183, 233, 291, 305, 485, 699, 915, 1165, 1455, 3495, 5917, 14213, 17751, 22601, 29585, 42639, 67803, 71065, 88755, 113005, 213195, 339015, 1378661, 4135983, 6893305, 20679915]

約数ペア:

[(1, 20679915), (3, 6893305), (5, 4135983), (15, 1378661), (61, 339015), (97, 213195), (183, 113005), (233, 88755), (291, 71065), (305, 67803), (485, 42639), (699, 29585), (915, 22601), (1165, 17751), (1455, 14213), (3495, 5917)]