2121945

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{2887}}^1$

素因数の和:2909

約数の個数: 24

約数和(自身を含む): 3950784

約数和(自身を除く): 1828839

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 2887, 8661, 14435, 20209, 43305, 60627, 101045, 141463, 303135, 424389, 707315, 2121945]

約数ペア:

[(1, 2121945), (3, 707315), (5, 424389), (7, 303135), (15, 141463), (21, 101045), (35, 60627), (49, 43305), (105, 20209), (147, 14435), (245, 8661), (735, 2887)]