208661684

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{677473}}^1$

素因数の和:677495

約数の個数: 24

約数和(自身を含む): 455262528

約数和(自身を除く): 246600844

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 677473, 1354946, 2709892, 4742311, 7452203, 9484622, 14904406, 18969244, 29808812, 52165421, 104330842, 208661684]

約数ペア:

[(1, 208661684), (2, 104330842), (4, 52165421), (7, 29808812), (11, 18969244), (14, 14904406), (22, 9484622), (28, 7452203), (44, 4742311), (77, 2709892), (154, 1354946), (308, 677473)]