21282772

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{18539}}^1$

素因数の和:18591

約数の個数: 24

約数和(自身を含む): 43606080

約数和(自身を除く): 22323308

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 18539, 37078, 74156, 129773, 259546, 519092, 760099, 1520198, 3040396, 5320693, 10641386, 21282772]

約数ペア:

[(1, 21282772), (2, 10641386), (4, 5320693), (7, 3040396), (14, 1520198), (28, 760099), (41, 519092), (82, 259546), (164, 129773), (287, 74156), (574, 37078), (1148, 18539)]