18944255

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 26320896

約数和(自身を除く): 7376641

約数列:

[1, 5, 11, 31, 41, 55, 155, 205, 271, 341, 451, 1271, 1355, 1705, 2255, 2981, 6355, 8401, 11111, 13981, 14905, 42005, 55555, 69905, 92411, 122221, 344441, 462055, 611105, 1722205, 3788851, 18944255]

約数ペア:

[(1, 18944255), (5, 3788851), (11, 1722205), (31, 611105), (41, 462055), (55, 344441), (155, 122221), (205, 92411), (271, 69905), (341, 55555), (451, 42005), (1271, 14905), (1355, 13981), (1705, 11111), (2255, 8401), (2981, 6355)]