21709568

素因数分解:

$2^8\times {\mathrm{137}}^1\times {\mathrm{619}}^1$

素因数の和:772

約数の個数: 36

約数和(自身を含む): 43721160

約数和(自身を除く): 22011592

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 256, 274, 548, 619, 1096, 1238, 2192, 2476, 4384, 4952, 8768, 9904, 17536, 19808, 35072, 39616, 79232, 84803, 158464, 169606, 339212, 678424, 1356848, 2713696, 5427392, 10854784, 21709568]

約数ペア:

[(1, 21709568), (2, 10854784), (4, 5427392), (8, 2713696), (16, 1356848), (32, 678424), (64, 339212), (128, 169606), (137, 158464), (256, 84803), (274, 79232), (548, 39616), (619, 35072), (1096, 19808), (1238, 17536), (2192, 9904), (2476, 8768), (4384, 4952)]