18903831

素因数分解:

$3^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 26691840

約数和(自身を除く): 7788009

約数列:

[1, 3, 31, 79, 83, 93, 237, 249, 961, 2449, 2573, 2883, 6557, 7347, 7719, 19671, 75919, 79763, 203267, 227757, 239289, 609801, 6301277, 18903831]

約数ペア:

[(1, 18903831), (3, 6301277), (31, 609801), (79, 239289), (83, 227757), (93, 203267), (237, 79763), (249, 75919), (961, 19671), (2449, 7719), (2573, 7347), (2883, 6557)]