21080823

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{5209}}^1$

素因数の和:5302

約数の個数: 16

約数和(自身を含む): 30009600

約数和(自身を除く): 8928777

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 5209, 15627, 98971, 296913, 369839, 1109517, 7026941, 21080823]

約数ペア:

[(1, 21080823), (3, 7026941), (19, 1109517), (57, 369839), (71, 296913), (213, 98971), (1349, 15627), (4047, 5209)]