20459985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1153}}^1$

素因数の和:1194

約数の個数: 48

約数和(自身を含む): 40546944

約数和(自身を除く): 20086959

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 169, 195, 273, 455, 507, 845, 1153, 1183, 1365, 2535, 3459, 3549, 5765, 5915, 8071, 14989, 17295, 17745, 24213, 40355, 44967, 74945, 104923, 121065, 194857, 224835, 314769, 524615, 584571, 974285, 1363999, 1573845, 2922855, 4091997, 6819995, 20459985]

約数ペア:

[(1, 20459985), (3, 6819995), (5, 4091997), (7, 2922855), (13, 1573845), (15, 1363999), (21, 974285), (35, 584571), (39, 524615), (65, 314769), (91, 224835), (105, 194857), (169, 121065), (195, 104923), (273, 74945), (455, 44967), (507, 40355), (845, 24213), (1153, 17745), (1183, 17295), (1365, 14989), (2535, 8071), (3459, 5915), (3549, 5765)]