20012629

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 25424280

約数和(自身を除く): 5411651

約数列:

[1, 7, 13, 49, 89, 91, 353, 623, 637, 1157, 2471, 4361, 4589, 8099, 17297, 31417, 32123, 56693, 219919, 224861, 408421, 1539433, 2858947, 20012629]

約数ペア:

[(1, 20012629), (7, 2858947), (13, 1539433), (49, 408421), (89, 224861), (91, 219919), (353, 56693), (623, 32123), (637, 31417), (1157, 17297), (2471, 8099), (4361, 4589)]