128538291

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{54167}}^1$

素因数の和:54290

約数の個数: 16

約数和(自身を含む): 197604864

約数和(自身を除く): 69066573

約数列:

[1, 3, 7, 21, 113, 339, 791, 2373, 54167, 162501, 379169, 1137507, 6120871, 18362613, 42846097, 128538291]

約数ペア:

[(1, 128538291), (3, 42846097), (7, 18362613), (21, 6120871), (113, 1137507), (339, 379169), (791, 162501), (2373, 54167)]