20872065

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{22811}}^1$

素因数の和:22880

約数の個数: 16

約数和(自身を含む): 33944256

約数和(自身を除く): 13072191

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 22811, 68433, 114055, 342165, 1391471, 4174413, 6957355, 20872065]

約数ペア:

[(1, 20872065), (3, 6957355), (5, 4174413), (15, 1391471), (61, 342165), (183, 114055), (305, 68433), (915, 22811)]