2605563

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 3978000

約数和(自身を除く): 1372437

約数列:

[1, 3, 9, 29, 67, 87, 149, 201, 261, 447, 603, 1341, 1943, 4321, 5829, 9983, 12963, 17487, 29949, 38889, 89847, 289507, 868521, 2605563]

約数ペア:

[(1, 2605563), (3, 868521), (9, 289507), (29, 89847), (67, 38889), (87, 29949), (149, 17487), (201, 12963), (261, 9983), (447, 5829), (603, 4321), (1341, 1943)]