18924884

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{641}}^1$

素因数の和:728

約数の個数: 36

約数和(自身を含む): 37057524

約数和(自身を除く): 18132640

約数列:

[1, 2, 4, 11, 22, 44, 61, 121, 122, 242, 244, 484, 641, 671, 1282, 1342, 2564, 2684, 7051, 7381, 14102, 14762, 28204, 29524, 39101, 77561, 78202, 155122, 156404, 310244, 430111, 860222, 1720444, 4731221, 9462442, 18924884]

約数ペア:

[(1, 18924884), (2, 9462442), (4, 4731221), (11, 1720444), (22, 860222), (44, 430111), (61, 310244), (121, 156404), (122, 155122), (242, 78202), (244, 77561), (484, 39101), (641, 29524), (671, 28204), (1282, 14762), (1342, 14102), (2564, 7381), (2684, 7051)]