21905926

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{17581}}^1$

素因数の和:17679

約数の個数: 16

約数和(自身を含む): 37977120

約数和(自身を除く): 16071194

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 17581, 35162, 123067, 246134, 1564709, 3129418, 10952963, 21905926]

約数ペア:

[(1, 21905926), (2, 10952963), (7, 3129418), (14, 1564709), (89, 246134), (178, 123067), (623, 35162), (1246, 17581)]