12971205

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 26208000

約数和(自身を除く): 13236795

約数列:

[1, 3, 5, 9, 13, 15, 19, 27, 39, 45, 57, 65, 95, 117, 135, 171, 195, 247, 285, 351, 389, 513, 585, 741, 855, 1167, 1235, 1755, 1945, 2223, 2565, 3501, 3705, 5057, 5835, 6669, 7391, 10503, 11115, 15171, 17505, 22173, 25285, 33345, 36955, 45513, 52515, 66519, 75855, 96083, 110865, 136539, 199557, 227565, 288249, 332595, 480415, 682695, 864747, 997785, 1441245, 2594241, 4323735, 12971205]

約数ペア:

[(1, 12971205), (3, 4323735), (5, 2594241), (9, 1441245), (13, 997785), (15, 864747), (19, 682695), (27, 480415), (39, 332595), (45, 288249), (57, 227565), (65, 199557), (95, 136539), (117, 110865), (135, 96083), (171, 75855), (195, 66519), (247, 52515), (285, 45513), (351, 36955), (389, 33345), (513, 25285), (585, 22173), (741, 17505), (855, 15171), (1167, 11115), (1235, 10503), (1755, 7391), (1945, 6669), (2223, 5835), (2565, 5057), (3501, 3705)]