13217939

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 17280000

約数和(自身を除く): 4062061

約数列:

[1, 7, 19, 23, 29, 133, 149, 161, 203, 437, 551, 667, 1043, 2831, 3059, 3427, 3857, 4321, 4669, 12673, 19817, 23989, 30247, 65113, 82099, 88711, 99383, 455791, 574693, 695681, 1888277, 13217939]

約数ペア:

[(1, 13217939), (7, 1888277), (19, 695681), (23, 574693), (29, 455791), (133, 99383), (149, 88711), (161, 82099), (203, 65113), (437, 30247), (551, 23989), (667, 19817), (1043, 12673), (2831, 4669), (3059, 4321), (3427, 3857)]