21416772

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:217

約数の個数: 96

約数和(自身を含む): 57802752

約数和(自身を除く): 36385980

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 47, 52, 69, 78, 92, 94, 127, 138, 141, 156, 188, 254, 276, 282, 299, 381, 508, 564, 598, 611, 762, 897, 1081, 1196, 1222, 1524, 1651, 1794, 1833, 2162, 2444, 2921, 3243, 3302, 3588, 3666, 4324, 4953, 5842, 5969, 6486, 6604, 7332, 8763, 9906, 11684, 11938, 12972, 14053, 17526, 17907, 19812, 23876, 28106, 35052, 35814, 37973, 42159, 56212, 71628, 75946, 77597, 84318, 113919, 137287, 151892, 155194, 168636, 227838, 232791, 274574, 310388, 411861, 455676, 465582, 549148, 823722, 931164, 1647444, 1784731, 3569462, 5354193, 7138924, 10708386, 21416772]

約数ペア:

[(1, 21416772), (2, 10708386), (3, 7138924), (4, 5354193), (6, 3569462), (12, 1784731), (13, 1647444), (23, 931164), (26, 823722), (39, 549148), (46, 465582), (47, 455676), (52, 411861), (69, 310388), (78, 274574), (92, 232791), (94, 227838), (127, 168636), (138, 155194), (141, 151892), (156, 137287), (188, 113919), (254, 84318), (276, 77597), (282, 75946), (299, 71628), (381, 56212), (508, 42159), (564, 37973), (598, 35814), (611, 35052), (762, 28106), (897, 23876), (1081, 19812), (1196, 17907), (1222, 17526), (1524, 14053), (1651, 12972), (1794, 11938), (1833, 11684), (2162, 9906), (2444, 8763), (2921, 7332), (3243, 6604), (3302, 6486), (3588, 5969), (3666, 5842), (4324, 4953)]