18969716

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1123}}^1$

素因数の和:1271

約数の個数: 24

約数和(自身を含む): 34367424

約数和(自身を除く): 15397708

約数列:

[1, 2, 4, 41, 82, 103, 164, 206, 412, 1123, 2246, 4223, 4492, 8446, 16892, 46043, 92086, 115669, 184172, 231338, 462676, 4742429, 9484858, 18969716]

約数ペア:

[(1, 18969716), (2, 9484858), (4, 4742429), (41, 462676), (82, 231338), (103, 184172), (164, 115669), (206, 92086), (412, 46043), (1123, 16892), (2246, 8446), (4223, 4492)]