21504906

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^2\times {\mathrm{79}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 49084800

約数和(自身を除く): 27579894

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 79, 142, 158, 213, 237, 426, 474, 639, 711, 1278, 1422, 1917, 2133, 3834, 4266, 5041, 5609, 10082, 11218, 15123, 16827, 30246, 33654, 45369, 50481, 90738, 100962, 136107, 151443, 272214, 302886, 398239, 796478, 1194717, 2389434, 3584151, 7168302, 10752453, 21504906]

約数ペア:

[(1, 21504906), (2, 10752453), (3, 7168302), (6, 3584151), (9, 2389434), (18, 1194717), (27, 796478), (54, 398239), (71, 302886), (79, 272214), (142, 151443), (158, 136107), (213, 100962), (237, 90738), (426, 50481), (474, 45369), (639, 33654), (711, 30246), (1278, 16827), (1422, 15123), (1917, 11218), (2133, 10082), (3834, 5609), (4266, 5041)]