21561365

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{10099}}^1$

素因数の和:10172

約数の個数: 16

約数和(自身を含む): 30057600

約数和(自身を除く): 8496235

約数列:

[1, 5, 7, 35, 61, 305, 427, 2135, 10099, 50495, 70693, 353465, 616039, 3080195, 4312273, 21561365]

約数ペア:

[(1, 21561365), (5, 4312273), (7, 3080195), (35, 616039), (61, 353465), (305, 70693), (427, 50495), (2135, 10099)]