18991412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{22717}}^1$

素因数の和:22751

約数の個数: 24

約数和(自身を含む): 38166240

約数和(自身を除く): 19174828

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 22717, 45434, 90868, 249887, 431623, 499774, 863246, 999548, 1726492, 4747853, 9495706, 18991412]

約数ペア:

[(1, 18991412), (2, 9495706), (4, 4747853), (11, 1726492), (19, 999548), (22, 863246), (38, 499774), (44, 431623), (76, 249887), (209, 90868), (418, 45434), (836, 22717)]