21400236

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4157}}^1$

素因数の和:4191

約数の個数: 72

約数和(自身を含む): 63567504

約数和(自身を除く): 42167268

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 198, 234, 286, 396, 429, 468, 572, 858, 1287, 1716, 2574, 4157, 5148, 8314, 12471, 16628, 24942, 37413, 45727, 49884, 54041, 74826, 91454, 108082, 137181, 149652, 162123, 182908, 216164, 274362, 324246, 411543, 486369, 548724, 594451, 648492, 823086, 972738, 1188902, 1646172, 1783353, 1945476, 2377804, 3566706, 5350059, 7133412, 10700118, 21400236]

約数ペア:

[(1, 21400236), (2, 10700118), (3, 7133412), (4, 5350059), (6, 3566706), (9, 2377804), (11, 1945476), (12, 1783353), (13, 1646172), (18, 1188902), (22, 972738), (26, 823086), (33, 648492), (36, 594451), (39, 548724), (44, 486369), (52, 411543), (66, 324246), (78, 274362), (99, 216164), (117, 182908), (132, 162123), (143, 149652), (156, 137181), (198, 108082), (234, 91454), (286, 74826), (396, 54041), (429, 49884), (468, 45727), (572, 37413), (858, 24942), (1287, 16628), (1716, 12471), (2574, 8314), (4157, 5148)]