21000895542

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{90887}}^1$

素因数の和:91298

約数の個数: 64

約数和(自身を含む): 51042700800

約数和(自身を除く): 30041805258

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 198, 297, 389, 594, 778, 1167, 2334, 3501, 4279, 7002, 8558, 10503, 12837, 21006, 25674, 38511, 77022, 90887, 115533, 181774, 231066, 272661, 545322, 817983, 999757, 1635966, 1999514, 2453949, 2999271, 4907898, 5998542, 8997813, 17995626, 26993439, 35355043, 53986878, 70710086, 106065129, 212130258, 318195387, 388905473, 636390774, 777810946, 954586161, 1166716419, 1909172322, 2333432838, 3500149257, 7000298514, 10500447771, 21000895542]

約数ペア:

[(1, 21000895542), (2, 10500447771), (3, 7000298514), (6, 3500149257), (9, 2333432838), (11, 1909172322), (18, 1166716419), (22, 954586161), (27, 777810946), (33, 636390774), (54, 388905473), (66, 318195387), (99, 212130258), (198, 106065129), (297, 70710086), (389, 53986878), (594, 35355043), (778, 26993439), (1167, 17995626), (2334, 8997813), (3501, 5998542), (4279, 4907898), (7002, 2999271), (8558, 2453949), (10503, 1999514), (12837, 1635966), (21006, 999757), (25674, 817983), (38511, 545322), (77022, 272661), (90887, 231066), (115533, 181774)]