8520561

素因数分解:

$3^2\times 7^2\times {\mathrm{139}}^2$

素因数の和:298

約数の個数: 27

約数和(自身を含む): 14420601

約数和(自身を除く): 5900040

約数列:

[1, 3, 7, 9, 21, 49, 63, 139, 147, 417, 441, 973, 1251, 2919, 6811, 8757, 19321, 20433, 57963, 61299, 135247, 173889, 405741, 946729, 1217223, 2840187, 8520561]

約数ペア:

[(1, 8520561), (3, 2840187), (7, 1217223), (9, 946729), (21, 405741), (49, 173889), (63, 135247), (139, 61299), (147, 57963), (417, 20433), (441, 19321), (973, 8757), (1251, 6811)]