19172615

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2621}}^1$

素因数の和:2663

約数の個数: 32

約数和(自身を含む): 30205440

約数和(自身を除く): 11032825

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 2621, 7315, 13105, 18347, 28831, 49799, 91735, 144155, 201817, 248995, 348593, 547789, 1009085, 1742965, 2738945, 3834523, 19172615]

約数ペア:

[(1, 19172615), (5, 3834523), (7, 2738945), (11, 1742965), (19, 1009085), (35, 547789), (55, 348593), (77, 248995), (95, 201817), (133, 144155), (209, 91735), (385, 49799), (665, 28831), (1045, 18347), (1463, 13105), (2621, 7315)]