21542168

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{47}}^2\times {\mathrm{53}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 43876080

約数和(自身を除く): 22333912

約数列:

[1, 2, 4, 8, 23, 46, 47, 53, 92, 94, 106, 184, 188, 212, 376, 424, 1081, 1219, 2162, 2209, 2438, 2491, 4324, 4418, 4876, 4982, 8648, 8836, 9752, 9964, 17672, 19928, 50807, 57293, 101614, 114586, 117077, 203228, 229172, 234154, 406456, 458344, 468308, 936616, 2692771, 5385542, 10771084, 21542168]

約数ペア:

[(1, 21542168), (2, 10771084), (4, 5385542), (8, 2692771), (23, 936616), (46, 468308), (47, 458344), (53, 406456), (92, 234154), (94, 229172), (106, 203228), (184, 117077), (188, 114586), (212, 101614), (376, 57293), (424, 50807), (1081, 19928), (1219, 17672), (2162, 9964), (2209, 9752), (2438, 8836), (2491, 8648), (4324, 4982), (4418, 4876)]