81721695

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2221}}^1$

素因数の和:2463

約数の個数: 32

約数和(自身を含む): 143345664

約数和(自身を除く): 61623969

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 223, 669, 1115, 2221, 2453, 3345, 6663, 7359, 11105, 12265, 24431, 33315, 36795, 73293, 122155, 366465, 495283, 1485849, 2476415, 5448113, 7429245, 16344339, 27240565, 81721695]

約数ペア:

[(1, 81721695), (3, 27240565), (5, 16344339), (11, 7429245), (15, 5448113), (33, 2476415), (55, 1485849), (165, 495283), (223, 366465), (669, 122155), (1115, 73293), (2221, 36795), (2453, 33315), (3345, 24431), (6663, 12265), (7359, 11105)]