18209737

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 24192000

約数和(自身を除く): 5982263

約数列:

[1, 7, 13, 17, 79, 91, 119, 149, 221, 553, 1027, 1043, 1343, 1547, 1937, 2533, 7189, 9401, 11771, 13559, 17459, 17731, 32929, 82397, 122213, 153023, 200107, 230503, 1071161, 1400749, 2601391, 18209737]

約数ペア:

[(1, 18209737), (7, 2601391), (13, 1400749), (17, 1071161), (79, 230503), (91, 200107), (119, 153023), (149, 122213), (221, 82397), (553, 32929), (1027, 17731), (1043, 17459), (1343, 13559), (1547, 11771), (1937, 9401), (2533, 7189)]