20217387

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{211}}^1$

素因数の和:315

約数の個数: 24

約数和(自身を含む): 29222080

約数和(自身を除く): 9004693

約数列:

[1, 3, 19, 41, 57, 123, 211, 633, 779, 1681, 2337, 4009, 5043, 8651, 12027, 25953, 31939, 95817, 164369, 354691, 493107, 1064073, 6739129, 20217387]

約数ペア:

[(1, 20217387), (3, 6739129), (19, 1064073), (41, 493107), (57, 354691), (123, 164369), (211, 95817), (633, 31939), (779, 25953), (1681, 12027), (2337, 8651), (4009, 5043)]