21305894

素因数分解:

$2^1\times {\mathrm{29}}^2\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:352

約数の個数: 24

約数和(自身を含む): 33864480

約数和(自身を除く): 12558586

約数列:

[1, 2, 29, 53, 58, 106, 239, 478, 841, 1537, 1682, 3074, 6931, 12667, 13862, 25334, 44573, 89146, 200999, 367343, 401998, 734686, 10652947, 21305894]

約数ペア:

[(1, 21305894), (2, 10652947), (29, 734686), (53, 401998), (58, 367343), (106, 200999), (239, 89146), (478, 44573), (841, 25334), (1537, 13862), (1682, 12667), (3074, 6931)]