21291288

素因数分解:

$2^3\times 3^1\times {\mathrm{107}}^1\times {\mathrm{8291}}^1$

素因数の和:8407

約数の個数: 32

約数和(自身を含む): 53732160

約数和(自身を除く): 32440872

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 107, 214, 321, 428, 642, 856, 1284, 2568, 8291, 16582, 24873, 33164, 49746, 66328, 99492, 198984, 887137, 1774274, 2661411, 3548548, 5322822, 7097096, 10645644, 21291288]

約数ペア:

[(1, 21291288), (2, 10645644), (3, 7097096), (4, 5322822), (6, 3548548), (8, 2661411), (12, 1774274), (24, 887137), (107, 198984), (214, 99492), (321, 66328), (428, 49746), (642, 33164), (856, 24873), (1284, 16582), (2568, 8291)]