20666338

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1009}}^1$

素因数の和:1055

約数の個数: 48

約数和(自身を含む): 41450400

約数和(自身を除く): 20784062

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 49, 77, 98, 133, 154, 209, 266, 418, 539, 931, 1009, 1078, 1463, 1862, 2018, 2926, 7063, 10241, 11099, 14126, 19171, 20482, 22198, 38342, 49441, 77693, 98882, 134197, 155386, 210881, 268394, 421762, 543851, 939379, 1087702, 1476167, 1878758, 2952334, 10333169, 20666338]

約数ペア:

[(1, 20666338), (2, 10333169), (7, 2952334), (11, 1878758), (14, 1476167), (19, 1087702), (22, 939379), (38, 543851), (49, 421762), (77, 268394), (98, 210881), (133, 155386), (154, 134197), (209, 98882), (266, 77693), (418, 49441), (539, 38342), (931, 22198), (1009, 20482), (1078, 19171), (1463, 14126), (1862, 11099), (2018, 10241), (2926, 7063)]