217679399

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{523}}^1\times {\mathrm{1607}}^1$

素因数の和:2174

約数の個数: 16

約数和(自身を含む): 256147968

約数和(自身を除く): 38468569

約数列:

[1, 7, 37, 259, 523, 1607, 3661, 11249, 19351, 59459, 135457, 416213, 840461, 5883227, 31097057, 217679399]

約数ペア:

[(1, 217679399), (7, 31097057), (37, 5883227), (259, 840461), (523, 416213), (1607, 135457), (3661, 59459), (11249, 19351)]