20344311

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 32760000

約数和(自身を除く): 12415689

約数列:

[1, 3, 9, 13, 27, 39, 117, 149, 351, 389, 447, 1167, 1341, 1937, 3501, 4023, 5057, 5811, 10503, 15171, 17433, 45513, 52299, 57961, 136539, 173883, 521649, 753493, 1564947, 2260479, 6781437, 20344311]

約数ペア:

[(1, 20344311), (3, 6781437), (9, 2260479), (13, 1564947), (27, 753493), (39, 521649), (117, 173883), (149, 136539), (351, 57961), (389, 52299), (447, 45513), (1167, 17433), (1341, 15171), (1937, 10503), (3501, 5811), (4023, 5057)]