20938809

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{4157}}^1$

素因数の和:4256

約数の個数: 16

約数和(自身を含む): 29538432

約数和(自身を除く): 8599623

約数列:

[1, 3, 23, 69, 73, 219, 1679, 4157, 5037, 12471, 95611, 286833, 303461, 910383, 6979603, 20938809]

約数ペア:

[(1, 20938809), (3, 6979603), (23, 910383), (69, 303461), (73, 286833), (219, 95611), (1679, 12471), (4157, 5037)]