21308826

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{599}}^1$

素因数の和:640

約数の個数: 72

約数和(自身を含む): 54583200

約数和(自身を除く): 33274374

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 121, 147, 154, 231, 242, 294, 363, 462, 539, 599, 726, 847, 1078, 1198, 1617, 1694, 1797, 2541, 3234, 3594, 4193, 5082, 5929, 6589, 8386, 11858, 12579, 13178, 17787, 19767, 25158, 29351, 35574, 39534, 46123, 58702, 72479, 88053, 92246, 138369, 144958, 176106, 217437, 276738, 322861, 434874, 507353, 645722, 968583, 1014706, 1522059, 1937166, 3044118, 3551471, 7102942, 10654413, 21308826]

約数ペア:

[(1, 21308826), (2, 10654413), (3, 7102942), (6, 3551471), (7, 3044118), (11, 1937166), (14, 1522059), (21, 1014706), (22, 968583), (33, 645722), (42, 507353), (49, 434874), (66, 322861), (77, 276738), (98, 217437), (121, 176106), (147, 144958), (154, 138369), (231, 92246), (242, 88053), (294, 72479), (363, 58702), (462, 46123), (539, 39534), (599, 35574), (726, 29351), (847, 25158), (1078, 19767), (1198, 17787), (1617, 13178), (1694, 12579), (1797, 11858), (2541, 8386), (3234, 6589), (3594, 5929), (4193, 5082)]