20921604

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{449}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 53524800

約数和(自身を除く): 32603196

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 353, 449, 706, 898, 1059, 1347, 1412, 1796, 2118, 2694, 3883, 4236, 4939, 5388, 7766, 9878, 11649, 14817, 15532, 19756, 23298, 29634, 46596, 59268, 158497, 316994, 475491, 633988, 950982, 1743467, 1901964, 3486934, 5230401, 6973868, 10460802, 20921604]

約数ペア:

[(1, 20921604), (2, 10460802), (3, 6973868), (4, 5230401), (6, 3486934), (11, 1901964), (12, 1743467), (22, 950982), (33, 633988), (44, 475491), (66, 316994), (132, 158497), (353, 59268), (449, 46596), (706, 29634), (898, 23298), (1059, 19756), (1347, 15532), (1412, 14817), (1796, 11649), (2118, 9878), (2694, 7766), (3883, 5388), (4236, 4939)]