21659456

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3719}}^1$

素因数の和:3751

約数の個数: 56

約数和(自身を含む): 52913280

約数和(自身を除く): 31253824

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 182, 208, 224, 364, 416, 448, 728, 832, 1456, 2912, 3719, 5824, 7438, 14876, 26033, 29752, 48347, 52066, 59504, 96694, 104132, 119008, 193388, 208264, 238016, 338429, 386776, 416528, 676858, 773552, 833056, 1353716, 1547104, 1666112, 2707432, 3094208, 5414864, 10829728, 21659456]

約数ペア:

[(1, 21659456), (2, 10829728), (4, 5414864), (7, 3094208), (8, 2707432), (13, 1666112), (14, 1547104), (16, 1353716), (26, 833056), (28, 773552), (32, 676858), (52, 416528), (56, 386776), (64, 338429), (91, 238016), (104, 208264), (112, 193388), (182, 119008), (208, 104132), (224, 96694), (364, 59504), (416, 52066), (448, 48347), (728, 29752), (832, 26033), (1456, 14876), (2912, 7438), (3719, 5824)]