21061369

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1367}}^1$

素因数の和:1476

約数の個数: 16

約数和(自身を含む): 25214976

約数和(自身を除く): 4153607

約数列:

[1, 7, 31, 71, 217, 497, 1367, 2201, 9569, 15407, 42377, 97057, 296639, 679399, 3008767, 21061369]

約数ペア:

[(1, 21061369), (7, 3008767), (31, 679399), (71, 296639), (217, 97057), (497, 42377), (1367, 15407), (2201, 9569)]