20856813

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{1531}}^1$

素因数の和:1792

約数の個数: 16

約数和(自身を含む): 29414400

約数和(自身を除く): 8557587

約数列:

[1, 3, 19, 57, 239, 717, 1531, 4541, 4593, 13623, 29089, 87267, 365909, 1097727, 6952271, 20856813]

約数ペア:

[(1, 20856813), (3, 6952271), (19, 1097727), (57, 365909), (239, 87267), (717, 29089), (1531, 13623), (4541, 4593)]