20112309

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 35717760

約数和(自身を除く): 15605451

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 89, 119, 153, 211, 267, 357, 623, 633, 801, 1071, 1477, 1513, 1869, 1899, 3587, 4431, 4539, 5607, 10591, 10761, 13293, 13617, 18779, 25109, 31773, 32283, 56337, 75327, 95319, 131453, 169011, 225981, 319243, 394359, 957729, 1183077, 2234701, 2873187, 6704103, 20112309]

約数ペア:

[(1, 20112309), (3, 6704103), (7, 2873187), (9, 2234701), (17, 1183077), (21, 957729), (51, 394359), (63, 319243), (89, 225981), (119, 169011), (153, 131453), (211, 95319), (267, 75327), (357, 56337), (623, 32283), (633, 31773), (801, 25109), (1071, 18779), (1477, 13617), (1513, 13293), (1869, 10761), (1899, 10591), (3587, 5607), (4431, 4539)]