21575035

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4363}}^1$

素因数の和:4434

約数の個数: 16

約数和(自身を含む): 27650304

約数和(自身を除く): 6075269

約数列:

[1, 5, 23, 43, 115, 215, 989, 4363, 4945, 21815, 100349, 187609, 501745, 938045, 4315007, 21575035]

約数ペア:

[(1, 21575035), (5, 4315007), (23, 938045), (43, 501745), (115, 187609), (215, 100349), (989, 21815), (4363, 4945)]