18489559

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:578

約数の個数: 16

約数和(自身を含む): 21060000

約数和(自身を除く): 2570441

約数列:

[1, 11, 29, 149, 319, 389, 1639, 4279, 4321, 11281, 47531, 57961, 124091, 637571, 1680869, 18489559]

約数ペア:

[(1, 18489559), (11, 1680869), (29, 637571), (149, 124091), (319, 57961), (389, 47531), (1639, 11281), (4279, 4321)]