20417145

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{577}}^1$

素因数の和:929

約数の個数: 32

約数和(自身を含む): 37509888

約数和(自身を除く): 17092743

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 337, 577, 1011, 1685, 1731, 2359, 2885, 4039, 5055, 7077, 8655, 11795, 12117, 20195, 35385, 60585, 194449, 583347, 972245, 1361143, 2916735, 4083429, 6805715, 20417145]

約数ペア:

[(1, 20417145), (3, 6805715), (5, 4083429), (7, 2916735), (15, 1361143), (21, 972245), (35, 583347), (105, 194449), (337, 60585), (577, 35385), (1011, 20195), (1685, 12117), (1731, 11795), (2359, 8655), (2885, 7077), (4039, 5055)]