20807521077

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{743}}^1\times {\mathrm{31013}}^1$

素因数の和:31809

約数の個数: 32

約数和(自身を含む): 32488777728

約数和(自身を除く): 11681256651

約数列:

[1, 3, 7, 21, 43, 129, 301, 743, 903, 2229, 5201, 15603, 31013, 31949, 93039, 95847, 217091, 223643, 651273, 670929, 1333559, 4000677, 9334913, 23042659, 28004739, 69127977, 161298613, 483895839, 990834337, 2972503011, 6935840359, 20807521077]

約数ペア:

[(1, 20807521077), (3, 6935840359), (7, 2972503011), (21, 990834337), (43, 483895839), (129, 161298613), (301, 69127977), (743, 28004739), (903, 23042659), (2229, 9334913), (5201, 4000677), (15603, 1333559), (31013, 670929), (31949, 651273), (93039, 223643), (95847, 217091)]