18655664

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{641}}^1$

素因数の和:773

約数の個数: 40

約数和(自身を含む): 38689488

約数和(自身を除く): 20033824

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 107, 136, 214, 272, 428, 641, 856, 1282, 1712, 1819, 2564, 3638, 5128, 7276, 10256, 10897, 14552, 21794, 29104, 43588, 68587, 87176, 137174, 174352, 274348, 548696, 1097392, 1165979, 2331958, 4663916, 9327832, 18655664]

約数ペア:

[(1, 18655664), (2, 9327832), (4, 4663916), (8, 2331958), (16, 1165979), (17, 1097392), (34, 548696), (68, 274348), (107, 174352), (136, 137174), (214, 87176), (272, 68587), (428, 43588), (641, 29104), (856, 21794), (1282, 14552), (1712, 10897), (1819, 10256), (2564, 7276), (3638, 5128)]