21374408

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 23441272

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 121, 142, 242, 284, 311, 484, 568, 622, 781, 968, 1244, 1562, 2488, 3124, 3421, 6248, 6842, 8591, 13684, 17182, 22081, 27368, 34364, 37631, 44162, 68728, 75262, 88324, 150524, 176648, 242891, 301048, 485782, 971564, 1943128, 2671801, 5343602, 10687204, 21374408]

約数ペア:

[(1, 21374408), (2, 10687204), (4, 5343602), (8, 2671801), (11, 1943128), (22, 971564), (44, 485782), (71, 301048), (88, 242891), (121, 176648), (142, 150524), (242, 88324), (284, 75262), (311, 68728), (484, 44162), (568, 37631), (622, 34364), (781, 27368), (968, 22081), (1244, 17182), (1562, 13684), (2488, 8591), (3124, 6842), (3421, 6248)]