19998279

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5569}}^1$

素因数の和:5604

約数の個数: 32

約数和(自身を含む): 35648000

約数和(自身を除く): 15649721

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 5569, 16707, 38983, 50121, 105811, 116949, 150363, 317433, 350847, 740677, 952299, 1052541, 2222031, 2856897, 6666093, 19998279]

約数ペア:

[(1, 19998279), (3, 6666093), (7, 2856897), (9, 2222031), (19, 1052541), (21, 952299), (27, 740677), (57, 350847), (63, 317433), (133, 150363), (171, 116949), (189, 105811), (399, 50121), (513, 38983), (1197, 16707), (3591, 5569)]