51731547

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{409}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 83443200

約数和(自身を除く): 31711653

約数列:

[1, 3, 7, 19, 21, 57, 133, 317, 399, 409, 951, 1227, 2219, 2863, 6023, 6657, 7771, 8589, 18069, 23313, 42161, 54397, 126483, 129653, 163191, 388959, 907571, 2463407, 2722713, 7390221, 17243849, 51731547]

約数ペア:

[(1, 51731547), (3, 17243849), (7, 7390221), (19, 2722713), (21, 2463407), (57, 907571), (133, 388959), (317, 163191), (399, 129653), (409, 126483), (951, 54397), (1227, 42161), (2219, 23313), (2863, 18069), (6023, 8589), (6657, 7771)]