20766704

素因数分解:

$2^4\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1181}}^1$

素因数の和:1353

約数の個数: 40

約数和(自身を含む): 46315488

約数和(自身を除く): 25548784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 157, 314, 628, 1099, 1181, 1256, 2198, 2362, 2512, 4396, 4724, 8267, 8792, 9448, 16534, 17584, 18896, 33068, 66136, 132272, 185417, 370834, 741668, 1297919, 1483336, 2595838, 2966672, 5191676, 10383352, 20766704]

約数ペア:

[(1, 20766704), (2, 10383352), (4, 5191676), (7, 2966672), (8, 2595838), (14, 1483336), (16, 1297919), (28, 741668), (56, 370834), (112, 185417), (157, 132272), (314, 66136), (628, 33068), (1099, 18896), (1181, 17584), (1256, 16534), (2198, 9448), (2362, 8792), (2512, 8267), (4396, 4724)]