81890721

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{3461}}^1$

素因数の和:3717

約数の個数: 24

約数和(自身を含む): 129617280

約数和(自身を除く): 47726559

約数列:

[1, 3, 9, 11, 33, 99, 239, 717, 2151, 2629, 3461, 7887, 10383, 23661, 31149, 38071, 114213, 342639, 827179, 2481537, 7444611, 9098969, 27296907, 81890721]

約数ペア:

[(1, 81890721), (3, 27296907), (9, 9098969), (11, 7444611), (33, 2481537), (99, 827179), (239, 342639), (717, 114213), (2151, 38071), (2629, 31149), (3461, 23661), (7887, 10383)]