21407892

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1033}}^1$

素因数の和:1208

約数の個数: 48

約数和(自身を含む): 54892992

約数和(自身を除く): 33485100

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 157, 314, 471, 628, 942, 1033, 1727, 1884, 2066, 3099, 3454, 4132, 5181, 6198, 6908, 10362, 11363, 12396, 20724, 22726, 34089, 45452, 68178, 136356, 162181, 324362, 486543, 648724, 973086, 1783991, 1946172, 3567982, 5351973, 7135964, 10703946, 21407892]

約数ペア:

[(1, 21407892), (2, 10703946), (3, 7135964), (4, 5351973), (6, 3567982), (11, 1946172), (12, 1783991), (22, 973086), (33, 648724), (44, 486543), (66, 324362), (132, 162181), (157, 136356), (314, 68178), (471, 45452), (628, 34089), (942, 22726), (1033, 20724), (1727, 12396), (1884, 11363), (2066, 10362), (3099, 6908), (3454, 6198), (4132, 5181)]