21487024

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5437}}^1$

素因数の和:5477

約数の個数: 40

約数和(自身を含む): 47201840

約数和(自身を除く): 25714816

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 5437, 10874, 21748, 43496, 70681, 86992, 103303, 141362, 206606, 282724, 413212, 565448, 826424, 1130896, 1342939, 1652848, 2685878, 5371756, 10743512, 21487024]

約数ペア:

[(1, 21487024), (2, 10743512), (4, 5371756), (8, 2685878), (13, 1652848), (16, 1342939), (19, 1130896), (26, 826424), (38, 565448), (52, 413212), (76, 282724), (104, 206606), (152, 141362), (208, 103303), (247, 86992), (304, 70681), (494, 43496), (988, 21748), (1976, 10874), (3952, 5437)]