21111156

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{599}}^1$

素因数の和:709

約数の個数: 72

約数和(自身を含む): 58968000

約数和(自身を除く): 37856844

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 89, 99, 132, 178, 198, 267, 356, 396, 534, 599, 801, 979, 1068, 1198, 1602, 1797, 1958, 2396, 2937, 3204, 3594, 3916, 5391, 5874, 6589, 7188, 8811, 10782, 11748, 13178, 17622, 19767, 21564, 26356, 35244, 39534, 53311, 59301, 79068, 106622, 118602, 159933, 213244, 237204, 319866, 479799, 586421, 639732, 959598, 1172842, 1759263, 1919196, 2345684, 3518526, 5277789, 7037052, 10555578, 21111156]

約数ペア:

[(1, 21111156), (2, 10555578), (3, 7037052), (4, 5277789), (6, 3518526), (9, 2345684), (11, 1919196), (12, 1759263), (18, 1172842), (22, 959598), (33, 639732), (36, 586421), (44, 479799), (66, 319866), (89, 237204), (99, 213244), (132, 159933), (178, 118602), (198, 106622), (267, 79068), (356, 59301), (396, 53311), (534, 39534), (599, 35244), (801, 26356), (979, 21564), (1068, 19767), (1198, 17622), (1602, 13178), (1797, 11748), (1958, 10782), (2396, 8811), (2937, 7188), (3204, 6589), (3594, 5874), (3916, 5391)]