8215221

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 13108480

約数和(自身を除く): 4893259

約数列:

[1, 3, 7, 21, 37, 97, 109, 111, 259, 291, 327, 679, 763, 777, 2037, 2289, 3589, 4033, 10573, 10767, 12099, 25123, 28231, 31719, 74011, 75369, 84693, 222033, 391201, 1173603, 2738407, 8215221]

約数ペア:

[(1, 8215221), (3, 2738407), (7, 1173603), (21, 391201), (37, 222033), (97, 84693), (109, 75369), (111, 74011), (259, 31719), (291, 28231), (327, 25123), (679, 12099), (763, 10767), (777, 10573), (2037, 4033), (2289, 3589)]