208096721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1\times {\mathrm{331}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 261350400

約数和(自身を除く): 53253679

約数列:

[1, 7, 19, 29, 133, 163, 203, 331, 551, 1141, 2317, 3097, 3857, 4727, 6289, 9599, 21679, 33089, 44023, 53953, 67193, 89813, 182381, 377671, 628691, 1025107, 1276667, 1564637, 7175749, 10952459, 29728103, 208096721]

約数ペア:

[(1, 208096721), (7, 29728103), (19, 10952459), (29, 7175749), (133, 1564637), (163, 1276667), (203, 1025107), (331, 628691), (551, 377671), (1141, 182381), (2317, 89813), (3097, 67193), (3857, 53953), (4727, 44023), (6289, 33089), (9599, 21679)]