20476395

素因数分解:

$3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{887}}^1$

素因数の和:926

約数の個数: 48

約数和(自身を含む): 38787840

約数和(自身を除く): 18311445

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 243, 285, 405, 513, 855, 887, 1215, 1539, 2565, 2661, 4435, 4617, 7695, 7983, 13305, 16853, 23085, 23949, 39915, 50559, 71847, 84265, 119745, 151677, 215541, 252795, 359235, 455031, 758385, 1077705, 1365093, 2275155, 4095279, 6825465, 20476395]

約数ペア:

[(1, 20476395), (3, 6825465), (5, 4095279), (9, 2275155), (15, 1365093), (19, 1077705), (27, 758385), (45, 455031), (57, 359235), (81, 252795), (95, 215541), (135, 151677), (171, 119745), (243, 84265), (285, 71847), (405, 50559), (513, 39915), (855, 23949), (887, 23085), (1215, 16853), (1539, 13305), (2565, 7983), (2661, 7695), (4435, 4617)]