20606971

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 27095040

約数和(自身を除く): 6488069

約数列:

[1, 7, 11, 31, 77, 89, 97, 217, 341, 623, 679, 979, 1067, 2387, 2759, 3007, 6853, 7469, 8633, 19313, 21049, 30349, 33077, 60431, 94963, 212443, 231539, 267623, 664741, 1873361, 2943853, 20606971]

約数ペア:

[(1, 20606971), (7, 2943853), (11, 1873361), (31, 664741), (77, 267623), (89, 231539), (97, 212443), (217, 94963), (341, 60431), (623, 33077), (679, 30349), (979, 21049), (1067, 19313), (2387, 8633), (2759, 7469), (3007, 6853)]