19553116

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:666

約数の個数: 36

約数和(自身を含む): 38208240

約数和(自身を除く): 18655124

約数列:

[1, 2, 4, 11, 22, 44, 71, 121, 142, 242, 284, 484, 569, 781, 1138, 1562, 2276, 3124, 6259, 8591, 12518, 17182, 25036, 34364, 40399, 68849, 80798, 137698, 161596, 275396, 444389, 888778, 1777556, 4888279, 9776558, 19553116]

約数ペア:

[(1, 19553116), (2, 9776558), (4, 4888279), (11, 1777556), (22, 888778), (44, 444389), (71, 275396), (121, 161596), (142, 137698), (242, 80798), (284, 68849), (484, 40399), (569, 34364), (781, 25036), (1138, 17182), (1562, 12518), (2276, 8591), (3124, 6259)]