19892173

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 24527360

約数和(自身を除く): 4635187

約数列:

[1, 7, 29, 31, 109, 203, 217, 763, 841, 899, 3161, 3379, 5887, 6293, 22127, 23653, 26071, 91669, 97991, 182497, 641683, 685937, 2841739, 19892173]

約数ペア:

[(1, 19892173), (7, 2841739), (29, 685937), (31, 641683), (109, 182497), (203, 97991), (217, 91669), (763, 26071), (841, 23653), (899, 22127), (3161, 6293), (3379, 5887)]