19503913

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 24820992

約数和(自身を除く): 5317079

約数列:

[1, 11, 13, 17, 71, 113, 143, 187, 221, 781, 923, 1207, 1243, 1469, 1921, 2431, 8023, 10153, 13277, 15691, 16159, 21131, 24973, 88253, 104299, 136391, 172601, 274703, 1147289, 1500301, 1773083, 19503913]

約数ペア:

[(1, 19503913), (11, 1773083), (13, 1500301), (17, 1147289), (71, 274703), (113, 172601), (143, 136391), (187, 104299), (221, 88253), (781, 24973), (923, 21131), (1207, 16159), (1243, 15691), (1469, 13277), (1921, 10153), (2431, 8023)]