19780558

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{74363}}^1$

素因数の和:74391

約数の個数: 16

約数和(自身を含む): 35694720

約数和(自身を除く): 15914162

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 74363, 148726, 520541, 1041082, 1412897, 2825794, 9890279, 19780558]

約数ペア:

[(1, 19780558), (2, 9890279), (7, 2825794), (14, 1412897), (19, 1041082), (38, 520541), (133, 148726), (266, 74363)]