18879868

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21751}}^1$

素因数の和:21793

約数の個数: 24

約数和(自身を含む): 38979584

約数和(自身を除く): 20099716

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 21751, 43502, 87004, 152257, 304514, 609028, 674281, 1348562, 2697124, 4719967, 9439934, 18879868]

約数ペア:

[(1, 18879868), (2, 9439934), (4, 4719967), (7, 2697124), (14, 1348562), (28, 674281), (31, 609028), (62, 304514), (124, 152257), (217, 87004), (434, 43502), (868, 21751)]