18940507089

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3482351}}^1$

素因数の和:3482405

約数の個数: 24

約数和(自身を含む): 30171097728

約数和(自身を除く): 11230590639

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 3482351, 10447053, 24376457, 73129371, 128846987, 170635199, 386540961, 511905597, 901928909, 2705786727, 6313502363, 18940507089]

約数ペア:

[(1, 18940507089), (3, 6313502363), (7, 2705786727), (21, 901928909), (37, 511905597), (49, 386540961), (111, 170635199), (147, 128846987), (259, 73129371), (777, 24376457), (1813, 10447053), (5439, 3482351)]