81251247

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{1667}}^1$

素因数の和:1899

約数の個数: 32

約数和(自身を含む): 135788544

約数和(自身を除く): 54537297

約数列:

[1, 3, 7, 11, 21, 33, 77, 211, 231, 633, 1477, 1667, 2321, 4431, 5001, 6963, 11669, 16247, 18337, 35007, 48741, 55011, 128359, 351737, 385077, 1055211, 2462159, 3869107, 7386477, 11607321, 27083749, 81251247]

約数ペア:

[(1, 81251247), (3, 27083749), (7, 11607321), (11, 7386477), (21, 3869107), (33, 2462159), (77, 1055211), (211, 385077), (231, 351737), (633, 128359), (1477, 55011), (1667, 48741), (2321, 35007), (4431, 18337), (5001, 16247), (6963, 11669)]