68921215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{40423}}^1$

素因数の和:40470

約数の個数: 16

約数和(自身を含む): 93136896

約数和(自身を除く): 24215681

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 40423, 202115, 444653, 1253113, 2223265, 6265565, 13784243, 68921215]

約数ペア:

[(1, 68921215), (5, 13784243), (11, 6265565), (31, 2223265), (55, 1253113), (155, 444653), (341, 202115), (1705, 40423)]