249915428

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{287921}}^1$

素因数の和:287963

約数の個数: 24

約数和(自身を含む): 515956224

約数和(自身を除く): 266040796

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 287921, 575842, 1151684, 2015447, 4030894, 8061788, 8925551, 17851102, 35702204, 62478857, 124957714, 249915428]

約数ペア:

[(1, 249915428), (2, 124957714), (4, 62478857), (7, 35702204), (14, 17851102), (28, 8925551), (31, 8061788), (62, 4030894), (124, 2015447), (217, 1151684), (434, 575842), (868, 287921)]