18407311

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:235

約数の個数: 24

約数和(自身を含む): 21740400

約数和(自身を除く): 3333089

約数列:

[1, 13, 17, 43, 149, 169, 221, 559, 731, 1937, 2533, 2873, 6407, 7267, 9503, 25181, 32929, 83291, 108919, 123539, 428077, 1082783, 1415947, 18407311]

約数ペア:

[(1, 18407311), (13, 1415947), (17, 1082783), (43, 428077), (149, 123539), (169, 108919), (221, 83291), (559, 32929), (731, 25181), (1937, 9503), (2533, 7267), (2873, 6407)]