138737221

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1427}}^1$

素因数の和:1513

約数の個数: 32

約数和(自身を含む): 180956160

約数和(自身を除く): 42218939

約数列:

[1, 7, 17, 19, 43, 119, 133, 301, 323, 731, 817, 1427, 2261, 5117, 5719, 9989, 13889, 24259, 27113, 61361, 97223, 169813, 189791, 429527, 460921, 1043137, 1165859, 3226447, 7301959, 8161013, 19819603, 138737221]

約数ペア:

[(1, 138737221), (7, 19819603), (17, 8161013), (19, 7301959), (43, 3226447), (119, 1165859), (133, 1043137), (301, 460921), (323, 429527), (731, 189791), (817, 169813), (1427, 97223), (2261, 61361), (5117, 27113), (5719, 24259), (9989, 13889)]