17820621

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7253}}^1$

素因数の和:7282

約数の個数: 32

約数和(自身を含む): 32497920

約数和(自身を除く): 14677299

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 7253, 21759, 50771, 65277, 94289, 152313, 195831, 282867, 456939, 660023, 848601, 1370817, 1980069, 2545803, 5940207, 17820621]

約数ペア:

[(1, 17820621), (3, 5940207), (7, 2545803), (9, 1980069), (13, 1370817), (21, 848601), (27, 660023), (39, 456939), (63, 282867), (91, 195831), (117, 152313), (189, 94289), (273, 65277), (351, 50771), (819, 21759), (2457, 7253)]