81997245

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{55217}}^1$

素因数の和:55242

約数の個数: 32

約数和(自身を含む): 159027840

約数和(自身を除く): 77030595

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 135, 165, 297, 495, 1485, 55217, 165651, 276085, 496953, 607387, 828255, 1490859, 1822161, 2484765, 3036935, 5466483, 7454295, 9110805, 16399449, 27332415, 81997245]

約数ペア:

[(1, 81997245), (3, 27332415), (5, 16399449), (9, 9110805), (11, 7454295), (15, 5466483), (27, 3036935), (33, 2484765), (45, 1822161), (55, 1490859), (99, 828255), (135, 607387), (165, 496953), (297, 276085), (495, 165651), (1485, 55217)]