21535248

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{599}}^1$

素因数の和:724

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 42746352

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 107, 112, 168, 214, 321, 336, 428, 599, 642, 749, 856, 1198, 1284, 1498, 1712, 1797, 2247, 2396, 2568, 2996, 3594, 4193, 4494, 4792, 5136, 5992, 7188, 8386, 8988, 9584, 11984, 12579, 14376, 16772, 17976, 25158, 28752, 33544, 35952, 50316, 64093, 67088, 100632, 128186, 192279, 201264, 256372, 384558, 448651, 512744, 769116, 897302, 1025488, 1345953, 1538232, 1794604, 2691906, 3076464, 3589208, 5383812, 7178416, 10767624, 21535248]

約数ペア:

[(1, 21535248), (2, 10767624), (3, 7178416), (4, 5383812), (6, 3589208), (7, 3076464), (8, 2691906), (12, 1794604), (14, 1538232), (16, 1345953), (21, 1025488), (24, 897302), (28, 769116), (42, 512744), (48, 448651), (56, 384558), (84, 256372), (107, 201264), (112, 192279), (168, 128186), (214, 100632), (321, 67088), (336, 64093), (428, 50316), (599, 35952), (642, 33544), (749, 28752), (856, 25158), (1198, 17976), (1284, 16772), (1498, 14376), (1712, 12579), (1797, 11984), (2247, 9584), (2396, 8988), (2568, 8386), (2996, 7188), (3594, 5992), (4193, 5136), (4494, 4792)]