21532784

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{643}}^1$

素因数の和:694

約数の個数: 80

約数和(自身を含む): 53663232

約数和(自身を除く): 32130448

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 46, 52, 56, 91, 92, 104, 112, 161, 182, 184, 208, 299, 322, 364, 368, 598, 643, 644, 728, 1196, 1286, 1288, 1456, 2093, 2392, 2572, 2576, 4186, 4501, 4784, 5144, 8359, 8372, 9002, 10288, 14789, 16718, 16744, 18004, 29578, 33436, 33488, 36008, 58513, 59156, 66872, 72016, 103523, 117026, 118312, 133744, 192257, 207046, 234052, 236624, 384514, 414092, 468104, 769028, 828184, 936208, 1345799, 1538056, 1656368, 2691598, 3076112, 5383196, 10766392, 21532784]

約数ペア:

[(1, 21532784), (2, 10766392), (4, 5383196), (7, 3076112), (8, 2691598), (13, 1656368), (14, 1538056), (16, 1345799), (23, 936208), (26, 828184), (28, 769028), (46, 468104), (52, 414092), (56, 384514), (91, 236624), (92, 234052), (104, 207046), (112, 192257), (161, 133744), (182, 118312), (184, 117026), (208, 103523), (299, 72016), (322, 66872), (364, 59156), (368, 58513), (598, 36008), (643, 33488), (644, 33436), (728, 29578), (1196, 18004), (1286, 16744), (1288, 16718), (1456, 14789), (2093, 10288), (2392, 9002), (2572, 8372), (2576, 8359), (4186, 5144), (4501, 4784)]