20919962

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{433}}^1$

素因数の和:495

約数の個数: 48

約数和(自身を含む): 40075560

約数和(自身を除く): 19155598

約数列:

[1, 2, 7, 14, 17, 29, 34, 49, 58, 98, 119, 203, 238, 406, 433, 493, 833, 866, 986, 1421, 1666, 2842, 3031, 3451, 6062, 6902, 7361, 12557, 14722, 21217, 24157, 25114, 42434, 48314, 51527, 87899, 103054, 175798, 213469, 360689, 426938, 615293, 721378, 1230586, 1494283, 2988566, 10459981, 20919962]

約数ペア:

[(1, 20919962), (2, 10459981), (7, 2988566), (14, 1494283), (17, 1230586), (29, 721378), (34, 615293), (49, 426938), (58, 360689), (98, 213469), (119, 175798), (203, 103054), (238, 87899), (406, 51527), (433, 48314), (493, 42434), (833, 25114), (866, 24157), (986, 21217), (1421, 14722), (1666, 12557), (2842, 7361), (3031, 6902), (3451, 6062)]