21306561

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{6619}}^1$

素因数の和:6688

約数の個数: 16

約数和(自身を含む): 30187200

約数和(自身を除く): 8880639

約数列:

[1, 3, 29, 37, 87, 111, 1073, 3219, 6619, 19857, 191951, 244903, 575853, 734709, 7102187, 21306561]

約数ペア:

[(1, 21306561), (3, 7102187), (29, 734709), (37, 575853), (87, 244903), (111, 191951), (1073, 19857), (3219, 6619)]