20765616

素因数分解:

$2^4\times 3^1\times {\mathrm{331}}^1\times {\mathrm{1307}}^1$

素因数の和:1649

約数の個数: 40

約数和(自身を含む): 53847744

約数和(自身を除く): 33082128

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 331, 662, 993, 1307, 1324, 1986, 2614, 2648, 3921, 3972, 5228, 5296, 7842, 7944, 10456, 15684, 15888, 20912, 31368, 62736, 432617, 865234, 1297851, 1730468, 2595702, 3460936, 5191404, 6921872, 10382808, 20765616]

約数ペア:

[(1, 20765616), (2, 10382808), (3, 6921872), (4, 5191404), (6, 3460936), (8, 2595702), (12, 1730468), (16, 1297851), (24, 865234), (48, 432617), (331, 62736), (662, 31368), (993, 20912), (1307, 15888), (1324, 15684), (1986, 10456), (2614, 7944), (2648, 7842), (3921, 5296), (3972, 5228)]