20946475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1291}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 28837440

約数和(自身を除く): 7890965

約数列:

[1, 5, 11, 25, 55, 59, 275, 295, 649, 1291, 1475, 3245, 6455, 14201, 16225, 32275, 71005, 76169, 355025, 380845, 837859, 1904225, 4189295, 20946475]

約数ペア:

[(1, 20946475), (5, 4189295), (11, 1904225), (25, 837859), (55, 380845), (59, 355025), (275, 76169), (295, 71005), (649, 32275), (1291, 16225), (1475, 14201), (3245, 6455)]