21286335

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{28961}}^1$

素因数の和:28983

約数の個数: 24

約数和(自身を含む): 39620016

約数和(自身を除く): 18333681

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 28961, 86883, 144805, 202727, 434415, 608181, 1013635, 1419089, 3040905, 4257267, 7095445, 21286335]

約数ペア:

[(1, 21286335), (3, 7095445), (5, 4257267), (7, 3040905), (15, 1419089), (21, 1013635), (35, 608181), (49, 434415), (105, 202727), (147, 144805), (245, 86883), (735, 28961)]