18802808

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 36548400

約数和(自身を除く): 17745592

約数列:

[1, 2, 4, 8, 37, 74, 139, 148, 278, 296, 457, 556, 914, 1112, 1828, 3656, 5143, 10286, 16909, 20572, 33818, 41144, 63523, 67636, 127046, 135272, 254092, 508184, 2350351, 4700702, 9401404, 18802808]

約数ペア:

[(1, 18802808), (2, 9401404), (4, 4700702), (8, 2350351), (37, 508184), (74, 254092), (139, 135272), (148, 127046), (278, 67636), (296, 63523), (457, 41144), (556, 33818), (914, 20572), (1112, 16909), (1828, 10286), (3656, 5143)]