64980027

素因数分解:

$3^2\times 7^2\times {\mathrm{147347}}^1$

素因数の和:147367

約数の個数: 18

約数和(自身を含む): 109184868

約数和(自身を除く): 44204841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 147347, 442041, 1031429, 1326123, 3094287, 7220003, 9282861, 21660009, 64980027]

約数ペア:

[(1, 64980027), (3, 21660009), (7, 9282861), (9, 7220003), (21, 3094287), (49, 1326123), (63, 1031429), (147, 442041), (441, 147347)]