12820221

素因数分解:

$3^3\times {\mathrm{457}}^1\times {\mathrm{1039}}^1$

素因数の和:1505

約数の個数: 16

約数和(自身を含む): 19052800

約数和(自身を除く): 6232579

約数列:

[1, 3, 9, 27, 457, 1039, 1371, 3117, 4113, 9351, 12339, 28053, 474823, 1424469, 4273407, 12820221]

約数ペア:

[(1, 12820221), (3, 4273407), (9, 1424469), (27, 474823), (457, 28053), (1039, 12339), (1371, 9351), (3117, 4113)]