18121208

素因数分解:

$2^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{2143}}^1$

素因数の和:2307

約数の個数: 32

約数和(自身を含む): 39106560

約数和(自身を除く): 20985352

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 151, 302, 604, 1057, 1208, 2114, 2143, 4228, 4286, 8456, 8572, 15001, 17144, 30002, 60004, 120008, 323593, 647186, 1294372, 2265151, 2588744, 4530302, 9060604, 18121208]

約数ペア:

[(1, 18121208), (2, 9060604), (4, 4530302), (7, 2588744), (8, 2265151), (14, 1294372), (28, 647186), (56, 323593), (151, 120008), (302, 60004), (604, 30002), (1057, 17144), (1208, 15001), (2114, 8572), (2143, 8456), (4228, 4286)]