21348387

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{16823}}^1$

素因数の和:16879

約数の個数: 16

約数和(自身を含む): 32302080

約数和(自身を除く): 10953693

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 16823, 50469, 151407, 454221, 790681, 2372043, 7116129, 21348387]

約数ペア:

[(1, 21348387), (3, 7116129), (9, 2372043), (27, 790681), (47, 454221), (141, 151407), (423, 50469), (1269, 16823)]