21957404

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 46948608

約数和(自身を除く): 24991204

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 163, 238, 283, 326, 476, 566, 652, 1132, 1141, 1981, 2282, 2771, 3962, 4564, 4811, 5542, 7924, 9622, 11084, 19244, 19397, 33677, 38794, 46129, 67354, 77588, 92258, 134708, 184516, 322903, 645806, 784193, 1291612, 1568386, 3136772, 5489351, 10978702, 21957404]

約数ペア:

[(1, 21957404), (2, 10978702), (4, 5489351), (7, 3136772), (14, 1568386), (17, 1291612), (28, 784193), (34, 645806), (68, 322903), (119, 184516), (163, 134708), (238, 92258), (283, 77588), (326, 67354), (476, 46129), (566, 38794), (652, 33677), (1132, 19397), (1141, 19244), (1981, 11084), (2282, 9622), (2771, 7924), (3962, 5542), (4564, 4811)]