21170336

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{439}}^1$

素因数の和:597

約数の個数: 48

約数和(自身を含む): 45904320

約数和(自身を除く): 24733984

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 137, 176, 274, 352, 439, 548, 878, 1096, 1507, 1756, 2192, 3014, 3512, 4384, 4829, 6028, 7024, 9658, 12056, 14048, 19316, 24112, 38632, 48224, 60143, 77264, 120286, 154528, 240572, 481144, 661573, 962288, 1323146, 1924576, 2646292, 5292584, 10585168, 21170336]

約数ペア:

[(1, 21170336), (2, 10585168), (4, 5292584), (8, 2646292), (11, 1924576), (16, 1323146), (22, 962288), (32, 661573), (44, 481144), (88, 240572), (137, 154528), (176, 120286), (274, 77264), (352, 60143), (439, 48224), (548, 38632), (878, 24112), (1096, 19316), (1507, 14048), (1756, 12056), (2192, 9658), (3014, 7024), (3512, 6028), (4384, 4829)]