21986499

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{947}}^1$

素因数の和:1130

約数の個数: 16

約数和(自身を含む): 30032640

約数和(自身を除く): 8046141

約数列:

[1, 3, 71, 109, 213, 327, 947, 2841, 7739, 23217, 67237, 103223, 201711, 309669, 7328833, 21986499]

約数ペア:

[(1, 21986499), (3, 7328833), (71, 309669), (109, 201711), (213, 103223), (327, 67237), (947, 23217), (2841, 7739)]