21062545

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1667}}^1$

素因数の和:1717

約数の個数: 24

約数和(自身を含む): 30504384

約数和(自身を除く): 9441839

約数列:

[1, 5, 7, 19, 35, 95, 133, 361, 665, 1667, 1805, 2527, 8335, 11669, 12635, 31673, 58345, 158365, 221711, 601787, 1108555, 3008935, 4212509, 21062545]

約数ペア:

[(1, 21062545), (5, 4212509), (7, 3008935), (19, 1108555), (35, 601787), (95, 221711), (133, 158365), (361, 58345), (665, 31673), (1667, 12635), (1805, 11669), (2527, 8335)]