19998782

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{6863}}^1$

素因数の和:6943

約数の個数: 16

約数和(自身を含む): 31629312

約数和(自身を除く): 11630530

約数列:

[1, 2, 31, 47, 62, 94, 1457, 2914, 6863, 13726, 212753, 322561, 425506, 645122, 9999391, 19998782]

約数ペア:

[(1, 19998782), (2, 9999391), (31, 645122), (47, 425506), (62, 322561), (94, 212753), (1457, 13726), (2914, 6863)]