217966689

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{7121}}^1$

素因数の和:7325

約数の個数: 24

約数和(自身を含む): 333309600

約数和(自身を除く): 115342911

約数列:

[1, 3, 9, 19, 57, 171, 179, 537, 1611, 3401, 7121, 10203, 21363, 30609, 64089, 135299, 405897, 1217691, 1274659, 3823977, 11471931, 24218521, 72655563, 217966689]

約数ペア:

[(1, 217966689), (3, 72655563), (9, 24218521), (19, 11471931), (57, 3823977), (171, 1274659), (179, 1217691), (537, 405897), (1611, 135299), (3401, 64089), (7121, 30609), (10203, 21363)]