21016268

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{57737}}^1$

素因数の和:57761

約数の個数: 24

約数和(自身を含む): 45266592

約数和(自身を除く): 24250324

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 57737, 115474, 230948, 404159, 750581, 808318, 1501162, 1616636, 3002324, 5254067, 10508134, 21016268]

約数ペア:

[(1, 21016268), (2, 10508134), (4, 5254067), (7, 3002324), (13, 1616636), (14, 1501162), (26, 808318), (28, 750581), (52, 404159), (91, 230948), (182, 115474), (364, 57737)]