18665864

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2801}}^1$

素因数の和:2838

約数の個数: 48

約数和(自身を含む): 43122780

約数和(自身を除く): 24456916

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 56, 68, 98, 119, 136, 196, 238, 392, 476, 833, 952, 1666, 2801, 3332, 5602, 6664, 11204, 19607, 22408, 39214, 47617, 78428, 95234, 137249, 156856, 190468, 274498, 333319, 380936, 548996, 666638, 1097992, 1333276, 2333233, 2666552, 4666466, 9332932, 18665864]

約数ペア:

[(1, 18665864), (2, 9332932), (4, 4666466), (7, 2666552), (8, 2333233), (14, 1333276), (17, 1097992), (28, 666638), (34, 548996), (49, 380936), (56, 333319), (68, 274498), (98, 190468), (119, 156856), (136, 137249), (196, 95234), (238, 78428), (392, 47617), (476, 39214), (833, 22408), (952, 19607), (1666, 11204), (2801, 6664), (3332, 5602)]