19458817

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:496

約数の個数: 16

約数和(自身を含む): 22816000

約数和(自身を除く): 3357183

約数列:

[1, 7, 61, 199, 229, 427, 1393, 1603, 12139, 13969, 45571, 84973, 97783, 318997, 2779831, 19458817]

約数ペア:

[(1, 19458817), (7, 2779831), (61, 318997), (199, 97783), (229, 84973), (427, 45571), (1393, 13969), (1603, 12139)]