18239912

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3119}}^1$

素因数の和:3185

約数の個数: 32

約数和(自身を含む): 37065600

約数和(自身を除く): 18825688

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3119, 5848, 6238, 12476, 24952, 53023, 106046, 134117, 212092, 268234, 424184, 536468, 1072936, 2279989, 4559978, 9119956, 18239912]

約数ペア:

[(1, 18239912), (2, 9119956), (4, 4559978), (8, 2279989), (17, 1072936), (34, 536468), (43, 424184), (68, 268234), (86, 212092), (136, 134117), (172, 106046), (344, 53023), (731, 24952), (1462, 12476), (2924, 6238), (3119, 5848)]