21701115

素因数分解:

$3^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 39862368

約数和(自身を除く): 18161253

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 243, 265, 337, 405, 477, 795, 1011, 1215, 1431, 1685, 2385, 3033, 4293, 5055, 7155, 9099, 12879, 15165, 17861, 21465, 27297, 45495, 53583, 64395, 81891, 89305, 136485, 160749, 267915, 409455, 482247, 803745, 1446741, 2411235, 4340223, 7233705, 21701115]

約数ペア:

[(1, 21701115), (3, 7233705), (5, 4340223), (9, 2411235), (15, 1446741), (27, 803745), (45, 482247), (53, 409455), (81, 267915), (135, 160749), (159, 136485), (243, 89305), (265, 81891), (337, 64395), (405, 53583), (477, 45495), (795, 27297), (1011, 21465), (1215, 17861), (1431, 15165), (1685, 12879), (2385, 9099), (3033, 7155), (4293, 5055)]