19712343

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 11391657

約数列:

[1, 3, 7, 21, 53, 89, 159, 199, 267, 371, 597, 623, 1113, 1393, 1869, 4179, 4717, 10547, 14151, 17711, 31641, 33019, 53133, 73829, 99057, 123977, 221487, 371931, 938683, 2816049, 6570781, 19712343]

約数ペア:

[(1, 19712343), (3, 6570781), (7, 2816049), (21, 938683), (53, 371931), (89, 221487), (159, 123977), (199, 99057), (267, 73829), (371, 53133), (597, 33019), (623, 31641), (1113, 17711), (1393, 14151), (1869, 10547), (4179, 4717)]