19942942

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{619}}^1$

素因数の和:891

約数の個数: 16

約数和(自身を含む): 30466800

約数和(自身を除く): 10523858

約数列:

[1, 2, 89, 178, 181, 362, 619, 1238, 16109, 32218, 55091, 110182, 112039, 224078, 9971471, 19942942]

約数ペア:

[(1, 19942942), (2, 9971471), (89, 224078), (178, 112039), (181, 110182), (362, 55091), (619, 32218), (1238, 16109)]