21363432

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 55418880

約数和(自身を除く): 34055448

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 127, 129, 163, 172, 254, 258, 326, 344, 381, 489, 508, 516, 652, 762, 978, 1016, 1032, 1304, 1524, 1956, 3048, 3912, 5461, 7009, 10922, 14018, 16383, 20701, 21027, 21844, 28036, 32766, 41402, 42054, 43688, 56072, 62103, 65532, 82804, 84108, 124206, 131064, 165608, 168216, 248412, 496824, 890143, 1780286, 2670429, 3560572, 5340858, 7121144, 10681716, 21363432]

約数ペア:

[(1, 21363432), (2, 10681716), (3, 7121144), (4, 5340858), (6, 3560572), (8, 2670429), (12, 1780286), (24, 890143), (43, 496824), (86, 248412), (127, 168216), (129, 165608), (163, 131064), (172, 124206), (254, 84108), (258, 82804), (326, 65532), (344, 62103), (381, 56072), (489, 43688), (508, 42054), (516, 41402), (652, 32766), (762, 28036), (978, 21844), (1016, 21027), (1032, 20701), (1304, 16383), (1524, 14018), (1956, 10922), (3048, 7009), (3912, 5461)]