19816636

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{151}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 41198080

約数和(自身を除く): 21381444

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 109, 151, 172, 218, 301, 302, 436, 602, 604, 763, 1057, 1204, 1526, 2114, 3052, 4228, 4687, 6493, 9374, 12986, 16459, 18748, 25972, 32809, 32918, 45451, 65618, 65836, 90902, 115213, 131236, 181804, 230426, 460852, 707737, 1415474, 2830948, 4954159, 9908318, 19816636]

約数ペア:

[(1, 19816636), (2, 9908318), (4, 4954159), (7, 2830948), (14, 1415474), (28, 707737), (43, 460852), (86, 230426), (109, 181804), (151, 131236), (172, 115213), (218, 90902), (301, 65836), (302, 65618), (436, 45451), (602, 32918), (604, 32809), (763, 25972), (1057, 18748), (1204, 16459), (1526, 12986), (2114, 9374), (3052, 6493), (4228, 4687)]