20783917

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5743}}^1$

素因数の和:5808

約数の個数: 16

約数和(自身を含む): 26468352

約数和(自身を除く): 5684435

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5743, 40201, 63173, 269921, 442211, 1889447, 2969131, 20783917]

約数ペア:

[(1, 20783917), (7, 2969131), (11, 1889447), (47, 442211), (77, 269921), (329, 63173), (517, 40201), (3619, 5743)]