18896087

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{487}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 22674432

約数和(自身を除く): 3778345

約数列:

[1, 7, 23, 161, 241, 487, 1687, 3409, 5543, 11201, 38801, 78407, 117367, 821569, 2699441, 18896087]

約数ペア:

[(1, 18896087), (7, 2699441), (23, 821569), (161, 117367), (241, 78407), (487, 38801), (1687, 11201), (3409, 5543)]