18839876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:404

約数の個数: 48

約数和(自身を含む): 38646720

約数和(自身を除く): 19806844

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 89, 178, 187, 283, 356, 374, 566, 748, 979, 1132, 1513, 1958, 3026, 3113, 3916, 4811, 6052, 6226, 9622, 12452, 16643, 19244, 25187, 33286, 50374, 52921, 66572, 100748, 105842, 211684, 277057, 428179, 554114, 856358, 1108228, 1712716, 4709969, 9419938, 18839876]

約数ペア:

[(1, 18839876), (2, 9419938), (4, 4709969), (11, 1712716), (17, 1108228), (22, 856358), (34, 554114), (44, 428179), (68, 277057), (89, 211684), (178, 105842), (187, 100748), (283, 66572), (356, 52921), (374, 50374), (566, 33286), (748, 25187), (979, 19244), (1132, 16643), (1513, 12452), (1958, 9622), (3026, 6226), (3113, 6052), (3916, 4811)]