28653867

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 47443968

約数和(自身を除く): 18790101

約数列:

[1, 3, 9, 11, 33, 43, 53, 99, 127, 129, 159, 381, 387, 473, 477, 583, 1143, 1397, 1419, 1749, 2279, 4191, 4257, 5247, 5461, 6731, 6837, 12573, 16383, 20193, 20511, 25069, 49149, 60071, 60579, 74041, 75207, 180213, 222123, 225621, 289433, 540639, 666369, 868299, 2604897, 3183763, 9551289, 28653867]

約数ペア:

[(1, 28653867), (3, 9551289), (9, 3183763), (11, 2604897), (33, 868299), (43, 666369), (53, 540639), (99, 289433), (127, 225621), (129, 222123), (159, 180213), (381, 75207), (387, 74041), (473, 60579), (477, 60071), (583, 49149), (1143, 25069), (1397, 20511), (1419, 20193), (1749, 16383), (2279, 12573), (4191, 6837), (4257, 6731), (5247, 5461)]