21505153

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{241}}^1$

素因数の和:468

約数の個数: 16

約数和(自身を含む): 23783760

約数和(自身を除く): 2278607

約数列:

[1, 17, 29, 181, 241, 493, 3077, 4097, 5249, 6989, 43621, 89233, 118813, 741557, 1265009, 21505153]

約数ペア:

[(1, 21505153), (17, 1265009), (29, 741557), (181, 118813), (241, 89233), (493, 43621), (3077, 6989), (4097, 5249)]