16391111

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 20487168

約数和(自身を除く): 4096057

約数列:

[1, 11, 17, 23, 37, 103, 187, 253, 391, 407, 629, 851, 1133, 1751, 2369, 3811, 4301, 6919, 9361, 14467, 19261, 26059, 40273, 41921, 64787, 87653, 159137, 443003, 712657, 964183, 1490101, 16391111]

約数ペア:

[(1, 16391111), (11, 1490101), (17, 964183), (23, 712657), (37, 443003), (103, 159137), (187, 87653), (253, 64787), (391, 41921), (407, 40273), (629, 26059), (851, 19261), (1133, 14467), (1751, 9361), (2369, 6919), (3811, 4301)]