19820528

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13613}}^1$

素因数の和:13641

約数の個数: 40

約数和(自身を含む): 47267808

約数和(自身を除く): 27447280

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13613, 27226, 54452, 95291, 108904, 176969, 190582, 217808, 353938, 381164, 707876, 762328, 1238783, 1415752, 1524656, 2477566, 2831504, 4955132, 9910264, 19820528]

約数ペア:

[(1, 19820528), (2, 9910264), (4, 4955132), (7, 2831504), (8, 2477566), (13, 1524656), (14, 1415752), (16, 1238783), (26, 762328), (28, 707876), (52, 381164), (56, 353938), (91, 217808), (104, 190582), (112, 176969), (182, 108904), (208, 95291), (364, 54452), (728, 27226), (1456, 13613)]