18904816

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9929}}^1$

素因数の和:9961

約数の個数: 40

約数和(自身を含む): 44327520

約数和(自身を除く): 25422704

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 9929, 19858, 39716, 69503, 79432, 139006, 158864, 168793, 278012, 337586, 556024, 675172, 1112048, 1181551, 1350344, 2363102, 2700688, 4726204, 9452408, 18904816]

約数ペア:

[(1, 18904816), (2, 9452408), (4, 4726204), (7, 2700688), (8, 2363102), (14, 1350344), (16, 1181551), (17, 1112048), (28, 675172), (34, 556024), (56, 337586), (68, 278012), (112, 168793), (119, 158864), (136, 139006), (238, 79432), (272, 69503), (476, 39716), (952, 19858), (1904, 9929)]