19669531

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{563}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 24689664

約数和(自身を除く): 5020133

約数列:

[1, 7, 23, 31, 49, 161, 217, 563, 713, 1127, 1519, 3941, 4991, 12949, 17453, 27587, 34937, 90643, 122171, 401419, 634501, 855197, 2809933, 19669531]

約数ペア:

[(1, 19669531), (7, 2809933), (23, 855197), (31, 634501), (49, 401419), (161, 122171), (217, 90643), (563, 34937), (713, 27587), (1127, 17453), (1519, 12949), (3941, 4991)]