1990387007

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{688477}}^1$

素因数の和:688550

約数の個数: 12

約数和(自身を含む): 2354594760

約数和(自身を除く): 364207753

約数列:

[1, 7, 49, 59, 413, 2891, 688477, 4819339, 33735373, 40620143, 284341001, 1990387007]

約数ペア:

[(1, 1990387007), (7, 284341001), (49, 40620143), (59, 33735373), (413, 4819339), (2891, 688477)]