28881765

素因数分解:

$3^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2161}}^1$

素因数の和:2192

約数の個数: 48

約数和(自身を含む): 56661696

約数和(自身を除く): 27779931

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 243, 297, 405, 495, 891, 1215, 1485, 2161, 2673, 4455, 6483, 10805, 13365, 19449, 23771, 32415, 58347, 71313, 97245, 118855, 175041, 213939, 291735, 356565, 525123, 641817, 875205, 1069695, 1925451, 2625615, 3209085, 5776353, 9627255, 28881765]

約数ペア:

[(1, 28881765), (3, 9627255), (5, 5776353), (9, 3209085), (11, 2625615), (15, 1925451), (27, 1069695), (33, 875205), (45, 641817), (55, 525123), (81, 356565), (99, 291735), (135, 213939), (165, 175041), (243, 118855), (297, 97245), (405, 71313), (495, 58347), (891, 32415), (1215, 23771), (1485, 19449), (2161, 13365), (2673, 10805), (4455, 6483)]