20381242

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{11113}}^1$

素因数の和:11253

約数の個数: 16

約数和(自身を含む): 35209152

約数和(自身を除く): 14827910

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 11113, 22226, 77791, 155582, 1455803, 2911606, 10190621, 20381242]

約数ペア:

[(1, 20381242), (2, 10190621), (7, 2911606), (14, 1455803), (131, 155582), (262, 77791), (917, 22226), (1834, 11113)]