21596505

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29383}}^1$

素因数の和:29405

約数の個数: 24

約数和(自身を含む): 40197312

約数和(自身を除く): 18600807

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 29383, 88149, 146915, 205681, 440745, 617043, 1028405, 1439767, 3085215, 4319301, 7198835, 21596505]

約数ペア:

[(1, 21596505), (3, 7198835), (5, 4319301), (7, 3085215), (15, 1439767), (21, 1028405), (35, 617043), (49, 440745), (105, 205681), (147, 146915), (245, 88149), (735, 29383)]