21756873

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10176567

約数列:

[1, 3, 23, 29, 69, 83, 87, 131, 249, 393, 667, 1909, 2001, 2407, 3013, 3799, 5727, 7221, 9039, 10873, 11397, 32619, 55361, 87377, 166083, 250079, 262131, 315317, 750237, 945951, 7252291, 21756873]

約数ペア:

[(1, 21756873), (3, 7252291), (23, 945951), (29, 750237), (69, 315317), (83, 262131), (87, 250079), (131, 166083), (249, 87377), (393, 55361), (667, 32619), (1909, 11397), (2001, 10873), (2407, 9039), (3013, 7221), (3799, 5727)]