21000570609

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{757}}^1\times {\mathrm{2591}}^1$

素因数の和:3477

約数の個数: 32

約数和(自身を含む): 29046657024

約数和(自身を除く): 8046086415

約数列:

[1, 3, 43, 83, 129, 249, 757, 2271, 2591, 3569, 7773, 10707, 32551, 62831, 97653, 111413, 188493, 215053, 334239, 645159, 1961387, 2701733, 5884161, 8105199, 9247279, 27741837, 84339641, 162795121, 253018923, 488385363, 7000190203, 21000570609]

約数ペア:

[(1, 21000570609), (3, 7000190203), (43, 488385363), (83, 253018923), (129, 162795121), (249, 84339641), (757, 27741837), (2271, 9247279), (2591, 8105199), (3569, 5884161), (7773, 2701733), (10707, 1961387), (32551, 645159), (62831, 334239), (97653, 215053), (111413, 188493)]