21028348

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1889}}^1$

素因数の和:1938

約数の個数: 36

約数和(自身を含む): 42230160

約数和(自身を除く): 21201812

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 121, 242, 253, 484, 506, 1012, 1889, 2783, 3778, 5566, 7556, 11132, 20779, 41558, 43447, 83116, 86894, 173788, 228569, 457138, 477917, 914276, 955834, 1911668, 5257087, 10514174, 21028348]

約数ペア:

[(1, 21028348), (2, 10514174), (4, 5257087), (11, 1911668), (22, 955834), (23, 914276), (44, 477917), (46, 457138), (92, 228569), (121, 173788), (242, 86894), (253, 83116), (484, 43447), (506, 41558), (1012, 20779), (1889, 11132), (2783, 7556), (3778, 5566)]