20669495

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1451}}^1$

素因数の和:1511

約数の個数: 32

約数和(自身を含む): 31781376

約数和(自身を除く): 11111881

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 1295, 1451, 2035, 2849, 7255, 10157, 14245, 15961, 50785, 53687, 79805, 111727, 268435, 375809, 558635, 590557, 1879045, 2952785, 4133899, 20669495]

約数ペア:

[(1, 20669495), (5, 4133899), (7, 2952785), (11, 1879045), (35, 590557), (37, 558635), (55, 375809), (77, 268435), (185, 111727), (259, 79805), (385, 53687), (407, 50785), (1295, 15961), (1451, 14245), (2035, 10157), (2849, 7255)]