644921394

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8268223}}^1$

素因数の和:8268241

約数の個数: 16

約数和(自身を含む): 1389061632

約数和(自身を除く): 744140238

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 8268223, 16536446, 24804669, 49609338, 107486899, 214973798, 322460697, 644921394]

約数ペア:

[(1, 644921394), (2, 322460697), (3, 214973798), (6, 107486899), (13, 49609338), (26, 24804669), (39, 16536446), (78, 8268223)]