1640457

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2003}}^1$

素因数の和:2029

約数の個数: 24

約数和(自身を含む): 2917824

約数和(自身を除く): 1277367

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 2003, 6009, 14021, 18027, 26039, 42063, 78117, 126189, 182273, 234351, 546819, 1640457]

約数ペア:

[(1, 1640457), (3, 546819), (7, 234351), (9, 182273), (13, 126189), (21, 78117), (39, 42063), (63, 26039), (91, 18027), (117, 14021), (273, 6009), (819, 2003)]