18155203

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 21546000

約数和(自身を除く): 3390797

約数列:

[1, 11, 19, 53, 121, 149, 209, 583, 1007, 1639, 2299, 2831, 6413, 7897, 11077, 18029, 31141, 86867, 121847, 150043, 342551, 955537, 1650473, 18155203]

約数ペア:

[(1, 18155203), (11, 1650473), (19, 955537), (53, 342551), (121, 150043), (149, 121847), (209, 86867), (583, 31141), (1007, 18029), (1639, 11077), (2299, 7897), (2831, 6413)]