209213221

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{44809}}^1$

素因数の和:44868

約数の個数: 16

約数和(自身を含む): 258105600

約数和(自身を除く): 48892379

約数列:

[1, 7, 23, 29, 161, 203, 667, 4669, 44809, 313663, 1030607, 1299461, 7214249, 9096227, 29887603, 209213221]

約数ペア:

[(1, 209213221), (7, 29887603), (23, 9096227), (29, 7214249), (161, 1299461), (203, 1030607), (667, 313663), (4669, 44809)]