21049492

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2689}}^1$

素因数の和:2815

約数の個数: 24

約数和(自身を含む): 39166400

約数和(自身を除く): 18116908

約数列:

[1, 2, 4, 19, 38, 76, 103, 206, 412, 1957, 2689, 3914, 5378, 7828, 10756, 51091, 102182, 204364, 276967, 553934, 1107868, 5262373, 10524746, 21049492]

約数ペア:

[(1, 21049492), (2, 10524746), (4, 5262373), (19, 1107868), (38, 553934), (76, 276967), (103, 204364), (206, 102182), (412, 51091), (1957, 10756), (2689, 7828), (3914, 5378)]