21549059

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 27724800

約数和(自身を除く): 6175741

約数列:

[1, 7, 19, 29, 37, 133, 151, 203, 259, 551, 703, 1057, 1073, 2869, 3857, 4379, 4921, 5587, 7511, 20083, 20387, 30653, 39109, 83201, 106153, 142709, 162023, 582407, 743071, 1134161, 3078437, 21549059]

約数ペア:

[(1, 21549059), (7, 3078437), (19, 1134161), (29, 743071), (37, 582407), (133, 162023), (151, 142709), (203, 106153), (259, 83201), (551, 39109), (703, 30653), (1057, 20387), (1073, 20083), (2869, 7511), (3857, 5587), (4379, 4921)]