21563632

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{797}}^1$

素因数の和:913

約数の個数: 40

約数和(自身を含む): 44528400

約数和(自身を除く): 22964768

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 89, 152, 178, 304, 356, 712, 797, 1424, 1594, 1691, 3188, 3382, 6376, 6764, 12752, 13528, 15143, 27056, 30286, 60572, 70933, 121144, 141866, 242288, 283732, 567464, 1134928, 1347727, 2695454, 5390908, 10781816, 21563632]

約数ペア:

[(1, 21563632), (2, 10781816), (4, 5390908), (8, 2695454), (16, 1347727), (19, 1134928), (38, 567464), (76, 283732), (89, 242288), (152, 141866), (178, 121144), (304, 70933), (356, 60572), (712, 30286), (797, 27056), (1424, 15143), (1594, 13528), (1691, 12752), (3188, 6764), (3382, 6376)]