21147076

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{4153}}^1$

素因数の和:4243

約数の個数: 24

約数和(自身を含む): 39546080

約数和(自身を除く): 18399004

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 1273, 2546, 4153, 5092, 8306, 16612, 78907, 157814, 278251, 315628, 556502, 1113004, 5286769, 10573538, 21147076]

約数ペア:

[(1, 21147076), (2, 10573538), (4, 5286769), (19, 1113004), (38, 556502), (67, 315628), (76, 278251), (134, 157814), (268, 78907), (1273, 16612), (2546, 8306), (4153, 5092)]