19778858

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{16963}}^1$

素因数の和:17029

約数の個数: 16

約数和(自身を含む): 32978016

約数和(自身を除く): 13199158

約数列:

[1, 2, 11, 22, 53, 106, 583, 1166, 16963, 33926, 186593, 373186, 899039, 1798078, 9889429, 19778858]

約数ペア:

[(1, 19778858), (2, 9889429), (11, 1798078), (22, 899039), (53, 373186), (106, 186593), (583, 33926), (1166, 16963)]