21943405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 30336768

約数和(自身を除く): 8393363

約数列:

[1, 5, 11, 37, 41, 55, 185, 205, 263, 407, 451, 1315, 1517, 2035, 2255, 2893, 7585, 9731, 10783, 14465, 16687, 48655, 53915, 83435, 107041, 118613, 398971, 535205, 593065, 1994855, 4388681, 21943405]

約数ペア:

[(1, 21943405), (5, 4388681), (11, 1994855), (37, 593065), (41, 535205), (55, 398971), (185, 118613), (205, 107041), (263, 83435), (407, 53915), (451, 48655), (1315, 16687), (1517, 14465), (2035, 10783), (2255, 9731), (2893, 7585)]