137745909

素因数分解:

$3^2\times 7^2\times {\mathrm{312349}}^1$

素因数の和:312369

約数の個数: 18

約数和(自身を含む): 231451350

約数和(自身を除く): 93705441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 312349, 937047, 2186443, 2811141, 6559329, 15305101, 19677987, 45915303, 137745909]

約数ペア:

[(1, 137745909), (3, 45915303), (7, 19677987), (9, 15305101), (21, 6559329), (49, 2811141), (63, 2186443), (147, 937047), (441, 312349)]