20004093

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:222

約数の個数: 36

約数和(自身を含む): 31382208

約数和(自身を除く): 11378115

約数列:

[1, 3, 9, 19, 47, 57, 131, 141, 171, 361, 393, 423, 893, 1083, 1179, 2489, 2679, 3249, 6157, 7467, 8037, 16967, 18471, 22401, 47291, 50901, 55413, 116983, 141873, 152703, 350949, 425619, 1052847, 2222677, 6668031, 20004093]

約数ペア:

[(1, 20004093), (3, 6668031), (9, 2222677), (19, 1052847), (47, 425619), (57, 350949), (131, 152703), (141, 141873), (171, 116983), (361, 55413), (393, 50901), (423, 47291), (893, 22401), (1083, 18471), (1179, 16967), (2489, 8037), (2679, 7467), (3249, 6157)]