21627808

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{479}}^1$

素因数の和:589

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24095072

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 83, 136, 166, 272, 332, 479, 544, 664, 958, 1328, 1411, 1916, 2656, 2822, 3832, 5644, 7664, 8143, 11288, 15328, 16286, 22576, 32572, 39757, 45152, 65144, 79514, 130288, 159028, 260576, 318056, 636112, 675869, 1272224, 1351738, 2703476, 5406952, 10813904, 21627808]

約数ペア:

[(1, 21627808), (2, 10813904), (4, 5406952), (8, 2703476), (16, 1351738), (17, 1272224), (32, 675869), (34, 636112), (68, 318056), (83, 260576), (136, 159028), (166, 130288), (272, 79514), (332, 65144), (479, 45152), (544, 39757), (664, 32572), (958, 22576), (1328, 16286), (1411, 15328), (1916, 11288), (2656, 8143), (2822, 7664), (3832, 5644)]