21080044

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3511}}^1$

素因数の和:3613

約数の個数: 24

約数和(自身を含む): 39334400

約数和(自身を除く): 18254356

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 3511, 6004, 7022, 14044, 66709, 133418, 266836, 277369, 554738, 1109476, 5270011, 10540022, 21080044]

約数ペア:

[(1, 21080044), (2, 10540022), (4, 5270011), (19, 1109476), (38, 554738), (76, 277369), (79, 266836), (158, 133418), (316, 66709), (1501, 14044), (3002, 7022), (3511, 6004)]