21539084

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40487}}^1$

素因数の和:40517

約数の個数: 24

約数和(自身を含む): 45346560

約数和(自身を除く): 23807476

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40487, 80974, 161948, 283409, 566818, 769253, 1133636, 1538506, 3077012, 5384771, 10769542, 21539084]

約数ペア:

[(1, 21539084), (2, 10769542), (4, 5384771), (7, 3077012), (14, 1538506), (19, 1133636), (28, 769253), (38, 566818), (76, 283409), (133, 161948), (266, 80974), (532, 40487)]