20916273

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1429}}^1$

素因数の和:1497

約数の個数: 32

約数和(自身を含む): 34594560

約数和(自身を除く): 13678287

約数列:

[1, 3, 7, 17, 21, 41, 51, 119, 123, 287, 357, 697, 861, 1429, 2091, 4287, 4879, 10003, 14637, 24293, 30009, 58589, 72879, 170051, 175767, 410123, 510153, 996013, 1230369, 2988039, 6972091, 20916273]

約数ペア:

[(1, 20916273), (3, 6972091), (7, 2988039), (17, 1230369), (21, 996013), (41, 510153), (51, 410123), (119, 175767), (123, 170051), (287, 72879), (357, 58589), (697, 30009), (861, 24293), (1429, 14637), (2091, 10003), (4287, 4879)]