641179947

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{3851}}^1$

素因数の和:4023

約数の個数: 32

約数和(自身を含む): 946667520

約数和(自身を除く): 305487573

約数列:

[1, 3, 19, 23, 57, 69, 127, 381, 437, 1311, 2413, 2921, 3851, 7239, 8763, 11553, 55499, 73169, 88573, 166497, 219507, 265719, 489077, 1467231, 1682887, 5048661, 9292463, 11248771, 27877389, 33746313, 213726649, 641179947]

約数ペア:

[(1, 641179947), (3, 213726649), (19, 33746313), (23, 27877389), (57, 11248771), (69, 9292463), (127, 5048661), (381, 1682887), (437, 1467231), (1311, 489077), (2413, 265719), (2921, 219507), (3851, 166497), (7239, 88573), (8763, 73169), (11553, 55499)]