19764693

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 34332480

約数和(自身を除く): 14567787

約数列:

[1, 3, 9, 13, 17, 19, 39, 51, 57, 117, 153, 171, 221, 247, 323, 523, 663, 741, 969, 1569, 1989, 2223, 2907, 4199, 4707, 6799, 8891, 9937, 12597, 20397, 26673, 29811, 37791, 61191, 80019, 89433, 115583, 129181, 168929, 346749, 387543, 506787, 1040247, 1162629, 1520361, 2196077, 6588231, 19764693]

約数ペア:

[(1, 19764693), (3, 6588231), (9, 2196077), (13, 1520361), (17, 1162629), (19, 1040247), (39, 506787), (51, 387543), (57, 346749), (117, 168929), (153, 129181), (171, 115583), (221, 89433), (247, 80019), (323, 61191), (523, 37791), (663, 29811), (741, 26673), (969, 20397), (1569, 12597), (1989, 9937), (2223, 8891), (2907, 6799), (4199, 4707)]