31719987

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{751}}^1$

素因数の和:808

約数の個数: 36

約数和(自身を含む): 52145184

約数和(自身を除く): 20425197

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 361, 741, 751, 1083, 2223, 2253, 3249, 4693, 6759, 9763, 14079, 14269, 29289, 42237, 42807, 87867, 128421, 185497, 271111, 556491, 813333, 1669473, 2439999, 3524443, 10573329, 31719987]

約数ペア:

[(1, 31719987), (3, 10573329), (9, 3524443), (13, 2439999), (19, 1669473), (39, 813333), (57, 556491), (117, 271111), (171, 185497), (247, 128421), (361, 87867), (741, 42807), (751, 42237), (1083, 29289), (2223, 14269), (2253, 14079), (3249, 9763), (4693, 6759)]