28213755

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1543}}^1$

素因数の和:1627

約数の個数: 32

約数和(自身を含む): 48024576

約数和(自身を除く): 19810821

約数列:

[1, 3, 5, 15, 23, 53, 69, 115, 159, 265, 345, 795, 1219, 1543, 3657, 4629, 6095, 7715, 18285, 23145, 35489, 81779, 106467, 177445, 245337, 408895, 532335, 1226685, 1880917, 5642751, 9404585, 28213755]

約数ペア:

[(1, 28213755), (3, 9404585), (5, 5642751), (15, 1880917), (23, 1226685), (53, 532335), (69, 408895), (115, 245337), (159, 177445), (265, 106467), (345, 81779), (795, 35489), (1219, 23145), (1543, 18285), (3657, 7715), (4629, 6095)]