18039866

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 30820608

約数和(自身を除く): 12780742

約数列:

[1, 2, 13, 23, 26, 46, 97, 194, 299, 311, 598, 622, 1261, 2231, 2522, 4043, 4462, 7153, 8086, 14306, 29003, 30167, 58006, 60334, 92989, 185978, 392171, 693841, 784342, 1387682, 9019933, 18039866]

約数ペア:

[(1, 18039866), (2, 9019933), (13, 1387682), (23, 784342), (26, 693841), (46, 392171), (97, 185978), (194, 92989), (299, 60334), (311, 58006), (598, 30167), (622, 29003), (1261, 14306), (2231, 8086), (2522, 7153), (4043, 4462)]