217245896

素因数分解:

$2^3\times 7^1\times {\mathrm{491}}^1\times {\mathrm{7901}}^1$

素因数の和:8405

約数の個数: 32

約数和(自身を含む): 466534080

約数和(自身を除く): 249288184

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 491, 982, 1964, 3437, 3928, 6874, 7901, 13748, 15802, 27496, 31604, 55307, 63208, 110614, 221228, 442456, 3879391, 7758782, 15517564, 27155737, 31035128, 54311474, 108622948, 217245896]

約数ペア:

[(1, 217245896), (2, 108622948), (4, 54311474), (7, 31035128), (8, 27155737), (14, 15517564), (28, 7758782), (56, 3879391), (491, 442456), (982, 221228), (1964, 110614), (3437, 63208), (3928, 55307), (6874, 31604), (7901, 27496), (13748, 15802)]