21807668

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16879}}^1$

素因数の和:16919

約数の個数: 24

約数和(自身を含む): 42537600

約数和(自身を除く): 20729932

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16879, 33758, 67516, 286943, 320701, 573886, 641402, 1147772, 1282804, 5451917, 10903834, 21807668]

約数ペア:

[(1, 21807668), (2, 10903834), (4, 5451917), (17, 1282804), (19, 1147772), (34, 641402), (38, 573886), (68, 320701), (76, 286943), (323, 67516), (646, 33758), (1292, 16879)]