20135871

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2089}}^1$

素因数の和:2125

約数の個数: 40

約数和(自身を含む): 36416160

約数和(自身を除く): 16280289

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 2089, 3213, 6267, 9639, 14623, 18801, 35513, 43869, 56403, 106539, 131607, 169209, 248591, 319617, 394821, 745773, 958851, 1184463, 2237319, 2876553, 6711957, 20135871]

約数ペア:

[(1, 20135871), (3, 6711957), (7, 2876553), (9, 2237319), (17, 1184463), (21, 958851), (27, 745773), (51, 394821), (63, 319617), (81, 248591), (119, 169209), (153, 131607), (189, 106539), (357, 56403), (459, 43869), (567, 35513), (1071, 18801), (1377, 14623), (2089, 9639), (3213, 6267)]