21573684

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{347}}^1$

素因数の和:525

約数の個数: 72

約数和(自身を含む): 60042528

約数和(自身を除く): 38468844

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 157, 198, 314, 347, 396, 471, 628, 694, 942, 1041, 1388, 1413, 1727, 1884, 2082, 2826, 3123, 3454, 3817, 4164, 5181, 5652, 6246, 6908, 7634, 10362, 11451, 12492, 15268, 15543, 20724, 22902, 31086, 34353, 45804, 54479, 62172, 68706, 108958, 137412, 163437, 217916, 326874, 490311, 599269, 653748, 980622, 1198538, 1797807, 1961244, 2397076, 3595614, 5393421, 7191228, 10786842, 21573684]

約数ペア:

[(1, 21573684), (2, 10786842), (3, 7191228), (4, 5393421), (6, 3595614), (9, 2397076), (11, 1961244), (12, 1797807), (18, 1198538), (22, 980622), (33, 653748), (36, 599269), (44, 490311), (66, 326874), (99, 217916), (132, 163437), (157, 137412), (198, 108958), (314, 68706), (347, 62172), (396, 54479), (471, 45804), (628, 34353), (694, 31086), (942, 22902), (1041, 20724), (1388, 15543), (1413, 15268), (1727, 12492), (1884, 11451), (2082, 10362), (2826, 7634), (3123, 6908), (3454, 6246), (3817, 5652), (4164, 5181)]