21086732

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{859}}^1$

素因数の和:918

約数の個数: 36

約数和(自身を含む): 41285160

約数和(自身を除く): 20198428

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 361, 646, 722, 859, 1292, 1444, 1718, 3436, 6137, 12274, 14603, 16321, 24548, 29206, 32642, 58412, 65284, 277457, 310099, 554914, 620198, 1109828, 1240396, 5271683, 10543366, 21086732]

約数ペア:

[(1, 21086732), (2, 10543366), (4, 5271683), (17, 1240396), (19, 1109828), (34, 620198), (38, 554914), (68, 310099), (76, 277457), (323, 65284), (361, 58412), (646, 32642), (722, 29206), (859, 24548), (1292, 16321), (1444, 14603), (1718, 12274), (3436, 6137)]