19890244

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{1801}}^1$

素因数の和:2067

約数の個数: 24

約数和(自身を含む): 38144736

約数和(自身を除く): 18254492

約数列:

[1, 2, 4, 11, 22, 44, 251, 502, 1004, 1801, 2761, 3602, 5522, 7204, 11044, 19811, 39622, 79244, 452051, 904102, 1808204, 4972561, 9945122, 19890244]

約数ペア:

[(1, 19890244), (2, 9945122), (4, 4972561), (11, 1808204), (22, 904102), (44, 452051), (251, 79244), (502, 39622), (1004, 19811), (1801, 11044), (2761, 7204), (3602, 5522)]