78977661

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{28277}}^1$

素因数の和:28313

約数の個数: 24

約数和(自身を含む): 128947680

約数和(自身を除く): 49970019

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 28277, 84831, 197939, 537263, 593817, 1385573, 1611789, 3760841, 4156719, 11282523, 26325887, 78977661]

約数ペア:

[(1, 78977661), (3, 26325887), (7, 11282523), (19, 4156719), (21, 3760841), (49, 1611789), (57, 1385573), (133, 593817), (147, 537263), (399, 197939), (931, 84831), (2793, 28277)]