21009080931

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1\times {\mathrm{541}}^1\times {\mathrm{593}}^1$

素因数の和:1483

約数の個数: 32

約数和(自身を含む): 28558075392

約数和(自身を除く): 7548994461

約数列:

[1, 3, 83, 249, 263, 541, 593, 789, 1623, 1779, 21829, 44903, 49219, 65487, 134709, 142283, 147657, 155959, 320813, 426849, 467877, 962439, 11809489, 12944597, 26627479, 35428467, 38833791, 79882437, 84373819, 253121457, 7003026977, 21009080931]

約数ペア:

[(1, 21009080931), (3, 7003026977), (83, 253121457), (249, 84373819), (263, 79882437), (541, 38833791), (593, 35428467), (789, 26627479), (1623, 12944597), (1779, 11809489), (21829, 962439), (44903, 467877), (49219, 426849), (65487, 320813), (134709, 155959), (142283, 147657)]