21131418

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{863}}^1$

素因数の和:939

約数の個数: 64

約数和(自身を含む): 53747712

約数和(自身を除く): 32616294

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 53, 66, 77, 106, 154, 159, 231, 318, 371, 462, 583, 742, 863, 1113, 1166, 1726, 1749, 2226, 2589, 3498, 4081, 5178, 6041, 8162, 9493, 12082, 12243, 18123, 18986, 24486, 28479, 36246, 45739, 56958, 66451, 91478, 132902, 137217, 199353, 274434, 320173, 398706, 503129, 640346, 960519, 1006258, 1509387, 1921038, 3018774, 3521903, 7043806, 10565709, 21131418]

約数ペア:

[(1, 21131418), (2, 10565709), (3, 7043806), (6, 3521903), (7, 3018774), (11, 1921038), (14, 1509387), (21, 1006258), (22, 960519), (33, 640346), (42, 503129), (53, 398706), (66, 320173), (77, 274434), (106, 199353), (154, 137217), (159, 132902), (231, 91478), (318, 66451), (371, 56958), (462, 45739), (583, 36246), (742, 28479), (863, 24486), (1113, 18986), (1166, 18123), (1726, 12243), (1749, 12082), (2226, 9493), (2589, 8162), (3498, 6041), (4081, 5178)]