18003139

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 23113728

約数和(自身を除く): 5110589

約数列:

[1, 7, 11, 49, 77, 127, 263, 539, 889, 1397, 1841, 2893, 6223, 9779, 12887, 20251, 33401, 68453, 141757, 233807, 367411, 1636649, 2571877, 18003139]

約数ペア:

[(1, 18003139), (7, 2571877), (11, 1636649), (49, 367411), (77, 233807), (127, 141757), (263, 68453), (539, 33401), (889, 20251), (1397, 12887), (1841, 9779), (2893, 6223)]