12991485

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3919}}^1$

素因数の和:3957

約数の個数: 32

約数和(自身を含む): 23708160

約数和(自身を除く): 10716675

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 3919, 11757, 19595, 50947, 58785, 66623, 152841, 199869, 254735, 333115, 764205, 866099, 999345, 2598297, 4330495, 12991485]

約数ペア:

[(1, 12991485), (3, 4330495), (5, 2598297), (13, 999345), (15, 866099), (17, 764205), (39, 333115), (51, 254735), (65, 199869), (85, 152841), (195, 66623), (221, 58785), (255, 50947), (663, 19595), (1105, 11757), (3315, 3919)]