21222181113

素因数分解:

$3^1\times 7^2\times {\mathrm{521}}^1\times {\mathrm{277099}}^1$

素因数の和:277637

約数の個数: 24

約数和(自身を含む): 32979333600

約数和(自身を除く): 11757152487

約数列:

[1, 3, 7, 21, 49, 147, 521, 1563, 3647, 10941, 25529, 76587, 277099, 831297, 1939693, 5819079, 13577851, 40733553, 144368579, 433105737, 1010580053, 3031740159, 7074060371, 21222181113]

約数ペア:

[(1, 21222181113), (3, 7074060371), (7, 3031740159), (21, 1010580053), (49, 433105737), (147, 144368579), (521, 40733553), (1563, 13577851), (3647, 5819079), (10941, 1939693), (25529, 831297), (76587, 277099)]