21642786

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:572

約数の個数: 72

約数和(自身を含む): 54359760

約数和(自身を除く): 32716974

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 33, 38, 57, 66, 99, 114, 121, 171, 198, 209, 242, 342, 363, 418, 523, 627, 726, 1046, 1089, 1254, 1569, 1881, 2178, 2299, 3138, 3762, 4598, 4707, 5753, 6897, 9414, 9937, 11506, 13794, 17259, 19874, 20691, 29811, 34518, 41382, 51777, 59622, 63283, 89433, 103554, 109307, 126566, 178866, 189849, 218614, 327921, 379698, 569547, 655842, 983763, 1139094, 1202377, 1967526, 2404754, 3607131, 7214262, 10821393, 21642786]

約数ペア:

[(1, 21642786), (2, 10821393), (3, 7214262), (6, 3607131), (9, 2404754), (11, 1967526), (18, 1202377), (19, 1139094), (22, 983763), (33, 655842), (38, 569547), (57, 379698), (66, 327921), (99, 218614), (114, 189849), (121, 178866), (171, 126566), (198, 109307), (209, 103554), (242, 89433), (342, 63283), (363, 59622), (418, 51777), (523, 41382), (627, 34518), (726, 29811), (1046, 20691), (1089, 19874), (1254, 17259), (1569, 13794), (1881, 11506), (2178, 9937), (2299, 9414), (3138, 6897), (3762, 5753), (4598, 4707)]