20139285

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 33466752

約数和(自身を除く): 13327467

約数列:

[1, 3, 5, 15, 37, 111, 131, 185, 277, 393, 555, 655, 831, 1385, 1965, 4155, 4847, 10249, 14541, 24235, 30747, 36287, 51245, 72705, 108861, 153735, 181435, 544305, 1342619, 4027857, 6713095, 20139285]

約数ペア:

[(1, 20139285), (3, 6713095), (5, 4027857), (15, 1342619), (37, 544305), (111, 181435), (131, 153735), (185, 108861), (277, 72705), (393, 51245), (555, 36287), (655, 30747), (831, 24235), (1385, 14541), (1965, 10249), (4155, 4847)]