21095739

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3251}}^1$

素因数の和:3367

約数の個数: 24

約数和(自身を含む): 35173632

約数和(自身を除く): 14077893

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 3251, 6489, 9753, 22757, 29259, 68271, 204813, 334853, 1004559, 2343971, 3013677, 7031913, 21095739]

約数ペア:

[(1, 21095739), (3, 7031913), (7, 3013677), (9, 2343971), (21, 1004559), (63, 334853), (103, 204813), (309, 68271), (721, 29259), (927, 22757), (2163, 9753), (3251, 6489)]