31261997

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 36670536

約数和(自身を除く): 5408539

約数列:

[1, 13, 17, 53, 157, 221, 289, 689, 901, 2041, 2669, 3757, 8321, 11713, 15317, 34697, 45373, 108173, 141457, 199121, 589849, 1838941, 2404769, 31261997]

約数ペア:

[(1, 31261997), (13, 2404769), (17, 1838941), (53, 589849), (157, 199121), (221, 141457), (289, 108173), (689, 45373), (901, 34697), (2041, 15317), (2669, 11713), (3757, 8321)]