21801857

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4799}}^1$

素因数の和:4876

約数の個数: 16

約数和(自身を含む): 27648000

約数和(自身を除く): 5846143

約数列:

[1, 7, 11, 59, 77, 413, 649, 4543, 4799, 33593, 52789, 283141, 369523, 1981987, 3114551, 21801857]

約数ペア:

[(1, 21801857), (7, 3114551), (11, 1981987), (59, 369523), (77, 283141), (413, 52789), (649, 33593), (4543, 4799)]