21974814

素因数分解:

$2^1\times 3^4\times {\mathrm{135647}}^1$

素因数の和:135661

約数の個数: 20

約数和(自身を含む): 49240224

約数和(自身を除く): 27265410

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 135647, 271294, 406941, 813882, 1220823, 2441646, 3662469, 7324938, 10987407, 21974814]

約数ペア:

[(1, 21974814), (2, 10987407), (3, 7324938), (6, 3662469), (9, 2441646), (18, 1220823), (27, 813882), (54, 406941), (81, 271294), (162, 135647)]