19714915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{373}}^1$

素因数の和:451

約数の個数: 24

約数和(自身を含む): 26739504

約数和(自身を除く): 7024589

約数列:

[1, 5, 11, 31, 55, 155, 341, 373, 961, 1705, 1865, 4103, 4805, 10571, 11563, 20515, 52855, 57815, 127193, 358453, 635965, 1792265, 3942983, 19714915]

約数ペア:

[(1, 19714915), (5, 3942983), (11, 1792265), (31, 635965), (55, 358453), (155, 127193), (341, 57815), (373, 52855), (961, 20515), (1705, 11563), (1865, 10571), (4103, 4805)]