201788121

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{631}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 287423488

約数和(自身を除く): 85635367

約数列:

[1, 3, 37, 43, 67, 111, 129, 201, 631, 1591, 1893, 2479, 2881, 4773, 7437, 8643, 23347, 27133, 42277, 70041, 81399, 106597, 126831, 319791, 1003921, 1564249, 1817911, 3011763, 4692747, 5453733, 67262707, 201788121]

約数ペア:

[(1, 201788121), (3, 67262707), (37, 5453733), (43, 4692747), (67, 3011763), (111, 1817911), (129, 1564249), (201, 1003921), (631, 319791), (1591, 126831), (1893, 106597), (2479, 81399), (2881, 70041), (4773, 42277), (7437, 27133), (8643, 23347)]