20306565

素因数分解:

$3^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{431}}^1$

素因数の和:794

約数の個数: 32

約数和(自身を含む): 36288000

約数和(自身を除く): 15981435

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 349, 431, 1047, 1293, 1745, 2155, 3141, 3879, 5235, 6465, 9423, 11637, 15705, 19395, 47115, 58185, 150419, 451257, 752095, 1353771, 2256285, 4061313, 6768855, 20306565]

約数ペア:

[(1, 20306565), (3, 6768855), (5, 4061313), (9, 2256285), (15, 1353771), (27, 752095), (45, 451257), (135, 150419), (349, 58185), (431, 47115), (1047, 19395), (1293, 15705), (1745, 11637), (2155, 9423), (3141, 6465), (3879, 5235)]