20408814

素因数分解:

$2^1\times 3^3\times {\mathrm{139}}^1\times {\mathrm{2719}}^1$

素因数の和:2869

約数の個数: 32

約数和(自身を含む): 45696000

約数和(自身を除く): 25287186

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 139, 278, 417, 834, 1251, 2502, 2719, 3753, 5438, 7506, 8157, 16314, 24471, 48942, 73413, 146826, 377941, 755882, 1133823, 2267646, 3401469, 6802938, 10204407, 20408814]

約数ペア:

[(1, 20408814), (2, 10204407), (3, 6802938), (6, 3401469), (9, 2267646), (18, 1133823), (27, 755882), (54, 377941), (139, 146826), (278, 73413), (417, 48942), (834, 24471), (1251, 16314), (2502, 8157), (2719, 7506), (3753, 5438)]