18663428

素因数分解:

$2^2\times 7^1\times {\mathrm{373}}^1\times {\mathrm{1787}}^1$

素因数の和:2171

約数の個数: 24

約数和(自身を含む): 37447872

約数和(自身を除く): 18784444

約数列:

[1, 2, 4, 7, 14, 28, 373, 746, 1492, 1787, 2611, 3574, 5222, 7148, 10444, 12509, 25018, 50036, 666551, 1333102, 2666204, 4665857, 9331714, 18663428]

約数ペア:

[(1, 18663428), (2, 9331714), (4, 4665857), (7, 2666204), (14, 1333102), (28, 666551), (373, 50036), (746, 25018), (1492, 12509), (1787, 10444), (2611, 7148), (3574, 5222)]