21000481255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7513589}}^1$

素因数の和:7513650

約数の個数: 16

約数和(自身を含む): 27770228640

約数和(自身を除く): 6769747385

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 7513589, 37567945, 97676657, 323084327, 488383285, 1615421635, 4200096251, 21000481255]

約数ペア:

[(1, 21000481255), (5, 4200096251), (13, 1615421635), (43, 488383285), (65, 323084327), (215, 97676657), (559, 37567945), (2795, 7513589)]