19085857

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{631}}^1$

素因数の和:816

約数の個数: 16

約数和(自身を含む): 22752000

約数和(自身を除く): 3666143

約数列:

[1, 7, 29, 149, 203, 631, 1043, 4321, 4417, 18299, 30247, 94019, 128093, 658133, 2726551, 19085857]

約数ペア:

[(1, 19085857), (7, 2726551), (29, 658133), (149, 128093), (203, 94019), (631, 30247), (1043, 18299), (4321, 4417)]