21465912

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{643}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 58423680

約数和(自身を除く): 36957768

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 107, 156, 214, 312, 321, 428, 642, 643, 856, 1284, 1286, 1391, 1929, 2568, 2572, 2782, 3858, 4173, 5144, 5564, 7716, 8346, 8359, 11128, 15432, 16692, 16718, 25077, 33384, 33436, 50154, 66872, 68801, 100308, 137602, 200616, 206403, 275204, 412806, 550408, 825612, 894413, 1651224, 1788826, 2683239, 3577652, 5366478, 7155304, 10732956, 21465912]

約数ペア:

[(1, 21465912), (2, 10732956), (3, 7155304), (4, 5366478), (6, 3577652), (8, 2683239), (12, 1788826), (13, 1651224), (24, 894413), (26, 825612), (39, 550408), (52, 412806), (78, 275204), (104, 206403), (107, 200616), (156, 137602), (214, 100308), (312, 68801), (321, 66872), (428, 50154), (642, 33436), (643, 33384), (856, 25077), (1284, 16718), (1286, 16692), (1391, 15432), (1929, 11128), (2568, 8359), (2572, 8346), (2782, 7716), (3858, 5564), (4173, 5144)]