19298587

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 26625024

約数和(自身を除く): 7326437

約数列:

[1, 7, 11, 17, 23, 77, 119, 161, 187, 253, 391, 641, 1309, 1771, 2737, 4301, 4487, 7051, 10897, 14743, 30107, 49357, 76279, 103201, 119867, 162173, 250631, 839069, 1135211, 1754417, 2756941, 19298587]

約数ペア:

[(1, 19298587), (7, 2756941), (11, 1754417), (17, 1135211), (23, 839069), (77, 250631), (119, 162173), (161, 119867), (187, 103201), (253, 76279), (391, 49357), (641, 30107), (1309, 14743), (1771, 10897), (2737, 7051), (4301, 4487)]