20209388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4507}}^1$

素因数の和:4589

約数の個数: 24

約数和(自身を含む): 37867200

約数和(自身を除く): 17657812

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4484, 4507, 9014, 18028, 85633, 171266, 265913, 342532, 531826, 1063652, 5052347, 10104694, 20209388]

約数ペア:

[(1, 20209388), (2, 10104694), (4, 5052347), (19, 1063652), (38, 531826), (59, 342532), (76, 265913), (118, 171266), (236, 85633), (1121, 18028), (2242, 9014), (4484, 4507)]