219875999

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 276672000

約数和(自身を除く): 56796001

約数列:

[1, 7, 19, 29, 109, 133, 203, 523, 551, 763, 2071, 3161, 3661, 3857, 9937, 14497, 15167, 22127, 57007, 60059, 69559, 106169, 288173, 399049, 420413, 1083133, 1653203, 2017211, 7581931, 11572421, 31410857, 219875999]

約数ペア:

[(1, 219875999), (7, 31410857), (19, 11572421), (29, 7581931), (109, 2017211), (133, 1653203), (203, 1083133), (523, 420413), (551, 399049), (763, 288173), (2071, 106169), (3161, 69559), (3661, 60059), (3857, 57007), (9937, 22127), (14497, 15167)]