217081772

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{187787}}^1$

素因数の和:187825

約数の個数: 18

約数和(自身を含む): 403556412

約数和(自身を除く): 186474640

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 187787, 375574, 751148, 3192379, 6384758, 12769516, 54270443, 108540886, 217081772]

約数ペア:

[(1, 217081772), (2, 108540886), (4, 54270443), (17, 12769516), (34, 6384758), (68, 3192379), (289, 751148), (578, 375574), (1156, 187787)]