19478039

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 24418800

約数和(自身を除く): 4940761

約数列:

[1, 7, 17, 49, 67, 119, 349, 469, 833, 1139, 2443, 3283, 5933, 7973, 17101, 23383, 41531, 55811, 163681, 290717, 397511, 1145767, 2782577, 19478039]

約数ペア:

[(1, 19478039), (7, 2782577), (17, 1145767), (49, 397511), (67, 290717), (119, 163681), (349, 55811), (469, 41531), (833, 23383), (1139, 17101), (2443, 7973), (3283, 5933)]