21682360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{367}}^1$

素因数の和:596

約数の個数: 64

約数和(自身を含む): 56171520

約数和(自身を除く): 34489160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 211, 280, 367, 422, 734, 844, 1055, 1468, 1477, 1688, 1835, 2110, 2569, 2936, 2954, 3670, 4220, 5138, 5908, 7340, 7385, 8440, 10276, 11816, 12845, 14680, 14770, 20552, 25690, 29540, 51380, 59080, 77437, 102760, 154874, 309748, 387185, 542059, 619496, 774370, 1084118, 1548740, 2168236, 2710295, 3097480, 4336472, 5420590, 10841180, 21682360]

約数ペア:

[(1, 21682360), (2, 10841180), (4, 5420590), (5, 4336472), (7, 3097480), (8, 2710295), (10, 2168236), (14, 1548740), (20, 1084118), (28, 774370), (35, 619496), (40, 542059), (56, 387185), (70, 309748), (140, 154874), (211, 102760), (280, 77437), (367, 59080), (422, 51380), (734, 29540), (844, 25690), (1055, 20552), (1468, 14770), (1477, 14680), (1688, 12845), (1835, 11816), (2110, 10276), (2569, 8440), (2936, 7385), (2954, 7340), (3670, 5908), (4220, 5138)]