19513964

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{1109}}^1$

素因数の和:1249

約数の個数: 24

約数和(自身を含む): 35244720

約数和(自身を除く): 15730756

約数列:

[1, 2, 4, 53, 83, 106, 166, 212, 332, 1109, 2218, 4399, 4436, 8798, 17596, 58777, 92047, 117554, 184094, 235108, 368188, 4878491, 9756982, 19513964]

約数ペア:

[(1, 19513964), (2, 9756982), (4, 4878491), (53, 368188), (83, 235108), (106, 184094), (166, 117554), (212, 92047), (332, 58777), (1109, 17596), (2218, 8798), (4399, 4436)]