19481553

素因数分解:

$3^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{881}}^1$

素因数の和:916

約数の個数: 48

約数和(自身を含む): 35957376

約数和(自身を除く): 16475823

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 243, 273, 351, 567, 819, 881, 1053, 1701, 2457, 2643, 3159, 6167, 7371, 7929, 11453, 18501, 22113, 23787, 34359, 55503, 71361, 80171, 103077, 166509, 214083, 240513, 309231, 499527, 721539, 927693, 1498581, 2164617, 2783079, 6493851, 19481553]

約数ペア:

[(1, 19481553), (3, 6493851), (7, 2783079), (9, 2164617), (13, 1498581), (21, 927693), (27, 721539), (39, 499527), (63, 309231), (81, 240513), (91, 214083), (117, 166509), (189, 103077), (243, 80171), (273, 71361), (351, 55503), (567, 34359), (819, 23787), (881, 22113), (1053, 18501), (1701, 11453), (2457, 7929), (2643, 7371), (3159, 6167)]