256646019

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{1723}}^1$

素因数の和:1947

約数の個数: 32

約数和(自身を含む): 403167744

約数和(自身を除く): 146521725

約数列:

[1, 3, 7, 21, 41, 123, 173, 287, 519, 861, 1211, 1723, 3633, 5169, 7093, 12061, 21279, 36183, 49651, 70643, 148953, 211929, 298079, 494501, 894237, 1483503, 2086553, 6259659, 12221239, 36663717, 85548673, 256646019]

約数ペア:

[(1, 256646019), (3, 85548673), (7, 36663717), (21, 12221239), (41, 6259659), (123, 2086553), (173, 1483503), (287, 894237), (519, 494501), (861, 298079), (1211, 211929), (1723, 148953), (3633, 70643), (5169, 49651), (7093, 36183), (12061, 21279)]