19926261

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:250

約数の個数: 36

約数和(自身を含む): 31417152

約数和(自身を除く): 11490891

約数列:

[1, 3, 9, 17, 47, 51, 141, 153, 163, 289, 423, 489, 799, 867, 1467, 2397, 2601, 2771, 7191, 7661, 8313, 13583, 22983, 24939, 40749, 47107, 68949, 122247, 130237, 141321, 390711, 423963, 1172133, 2214029, 6642087, 19926261]

約数ペア:

[(1, 19926261), (3, 6642087), (9, 2214029), (17, 1172133), (47, 423963), (51, 390711), (141, 141321), (153, 130237), (163, 122247), (289, 68949), (423, 47107), (489, 40749), (799, 24939), (867, 22983), (1467, 13583), (2397, 8313), (2601, 7661), (2771, 7191)]