21049383

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{271}}^1\times {\mathrm{1523}}^1$

素因数の和:1814

約数の個数: 16

約数和(自身を含む): 29846016

約数和(自身を除く): 8796633

約数列:

[1, 3, 17, 51, 271, 813, 1523, 4569, 4607, 13821, 25891, 77673, 412733, 1238199, 7016461, 21049383]

約数ペア:

[(1, 21049383), (3, 7016461), (17, 1238199), (51, 412733), (271, 77673), (813, 25891), (1523, 13821), (4569, 4607)]