28671993

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{277}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 49959936

約数和(自身を除く): 21287943

約数列:

[1, 3, 7, 9, 21, 31, 53, 63, 93, 159, 217, 277, 279, 371, 477, 651, 831, 1113, 1643, 1939, 1953, 2493, 3339, 4929, 5817, 8587, 11501, 14681, 14787, 17451, 25761, 34503, 44043, 60109, 77283, 102767, 103509, 132129, 180327, 308301, 455111, 540981, 924903, 1365333, 3185777, 4095999, 9557331, 28671993]

約数ペア:

[(1, 28671993), (3, 9557331), (7, 4095999), (9, 3185777), (21, 1365333), (31, 924903), (53, 540981), (63, 455111), (93, 308301), (159, 180327), (217, 132129), (277, 103509), (279, 102767), (371, 77283), (477, 60109), (651, 44043), (831, 34503), (1113, 25761), (1643, 17451), (1939, 14787), (1953, 14681), (2493, 11501), (3339, 8587), (4929, 5817)]