18725812

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:308

約数の個数: 48

約数和(自身を含む): 38950912

約数和(自身を除く): 20225100

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 103, 151, 172, 206, 301, 302, 412, 602, 604, 721, 1057, 1204, 1442, 2114, 2884, 4228, 4429, 6493, 8858, 12986, 15553, 17716, 25972, 31003, 31106, 45451, 62006, 62212, 90902, 108871, 124012, 181804, 217742, 435484, 668779, 1337558, 2675116, 4681453, 9362906, 18725812]

約数ペア:

[(1, 18725812), (2, 9362906), (4, 4681453), (7, 2675116), (14, 1337558), (28, 668779), (43, 435484), (86, 217742), (103, 181804), (151, 124012), (172, 108871), (206, 90902), (301, 62212), (302, 62006), (412, 45451), (602, 31106), (604, 31003), (721, 25972), (1057, 17716), (1204, 15553), (1442, 12986), (2114, 8858), (2884, 6493), (4228, 4429)]